31313520

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:157

約数の個数: 320

約数和(自身を含む): 130944000

約数和(自身を除く): 99630480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 19, 20, 21, 24, 27, 28, 30, 35, 36, 38, 40, 42, 45, 48, 54, 56, 57, 60, 63, 70, 72, 76, 80, 84, 90, 95, 105, 108, 109, 112, 114, 120, 126, 133, 135, 140, 144, 152, 168, 171, 180, 189, 190, 210, 216, 218, 228, 240, 252, 266, 270, 280, 285, 304, 315, 327, 336, 342, 360, 378, 380, 399, 420, 432, 436, 456, 504, 513, 532, 540, 545, 560, 570, 630, 654, 665, 684, 720, 756, 760, 763, 798, 840, 855, 872, 912, 945, 981, 1008, 1026, 1064, 1080, 1090, 1140, 1197, 1260, 1308, 1330, 1368, 1512, 1520, 1526, 1596, 1635, 1680, 1710, 1744, 1890, 1962, 1995, 2052, 2071, 2128, 2160, 2180, 2280, 2289, 2394, 2520, 2565, 2616, 2660, 2736, 2943, 3024, 3052, 3192, 3270, 3420, 3591, 3780, 3815, 3924, 3990, 4104, 4142, 4360, 4560, 4578, 4788, 4905, 5040, 5130, 5232, 5320, 5886, 5985, 6104, 6213, 6384, 6540, 6840, 6867, 7182, 7560, 7630, 7848, 7980, 8208, 8284, 8720, 9156, 9576, 9810, 10260, 10355, 10640, 11445, 11772, 11970, 12208, 12426, 13080, 13680, 13734, 14364, 14497, 14715, 15120, 15260, 15696, 15960, 16568, 17955, 18312, 18639, 19152, 19620, 20520, 20601, 20710, 22890, 23544, 23940, 24852, 26160, 27468, 28728, 28994, 29430, 30520, 31065, 31920, 33136, 34335, 35910, 36624, 37278, 39240, 41040, 41202, 41420, 43491, 45780, 47088, 47880, 49704, 54936, 55917, 57456, 57988, 58860, 61040, 62130, 68670, 71820, 72485, 74556, 78480, 82404, 82840, 86982, 91560, 93195, 95760, 99408, 103005, 109872, 111834, 115976, 117720, 124260, 130473, 137340, 143640, 144970, 149112, 164808, 165680, 173964, 183120, 186390, 206010, 217455, 223668, 231952, 235440, 248520, 260946, 274680, 279585, 287280, 289940, 298224, 329616, 347928, 372780, 391419, 412020, 434910, 447336, 497040, 521892, 549360, 559170, 579880, 652365, 695856, 745560, 782838, 824040, 869820, 894672, 1043784, 1118340, 1159760, 1304730, 1491120, 1565676, 1648080, 1739640, 1957095, 2087568, 2236680, 2609460, 3131352, 3479280, 3914190, 4473360, 5218920, 6262704, 7828380, 10437840, 15656760, 31313520]

約数ペア:

[(1, 31313520), (2, 15656760), (3, 10437840), (4, 7828380), (5, 6262704), (6, 5218920), (7, 4473360), (8, 3914190), (9, 3479280), (10, 3131352), (12, 2609460), (14, 2236680), (15, 2087568), (16, 1957095), (18, 1739640), (19, 1648080), (20, 1565676), (21, 1491120), (24, 1304730), (27, 1159760), (28, 1118340), (30, 1043784), (35, 894672), (36, 869820), (38, 824040), (40, 782838), (42, 745560), (45, 695856), (48, 652365), (54, 579880), (56, 559170), (57, 549360), (60, 521892), (63, 497040), (70, 447336), (72, 434910), (76, 412020), (80, 391419), (84, 372780), (90, 347928), (95, 329616), (105, 298224), (108, 289940), (109, 287280), (112, 279585), (114, 274680), (120, 260946), (126, 248520), (133, 235440), (135, 231952), (140, 223668), (144, 217455), (152, 206010), (168, 186390), (171, 183120), (180, 173964), (189, 165680), (190, 164808), (210, 149112), (216, 144970), (218, 143640), (228, 137340), (240, 130473), (252, 124260), (266, 117720), (270, 115976), (280, 111834), (285, 109872), (304, 103005), (315, 99408), (327, 95760), (336, 93195), (342, 91560), (360, 86982), (378, 82840), (380, 82404), (399, 78480), (420, 74556), (432, 72485), (436, 71820), (456, 68670), (504, 62130), (513, 61040), (532, 58860), (540, 57988), (545, 57456), (560, 55917), (570, 54936), (630, 49704), (654, 47880), (665, 47088), (684, 45780), (720, 43491), (756, 41420), (760, 41202), (763, 41040), (798, 39240), (840, 37278), (855, 36624), (872, 35910), (912, 34335), (945, 33136), (981, 31920), (1008, 31065), (1026, 30520), (1064, 29430), (1080, 28994), (1090, 28728), (1140, 27468), (1197, 26160), (1260, 24852), (1308, 23940), (1330, 23544), (1368, 22890), (1512, 20710), (1520, 20601), (1526, 20520), (1596, 19620), (1635, 19152), (1680, 18639), (1710, 18312), (1744, 17955), (1890, 16568), (1962, 15960), (1995, 15696), (2052, 15260), (2071, 15120), (2128, 14715), (2160, 14497), (2180, 14364), (2280, 13734), (2289, 13680), (2394, 13080), (2520, 12426), (2565, 12208), (2616, 11970), (2660, 11772), (2736, 11445), (2943, 10640), (3024, 10355), (3052, 10260), (3192, 9810), (3270, 9576), (3420, 9156), (3591, 8720), (3780, 8284), (3815, 8208), (3924, 7980), (3990, 7848), (4104, 7630), (4142, 7560), (4360, 7182), (4560, 6867), (4578, 6840), (4788, 6540), (4905, 6384), (5040, 6213), (5130, 6104), (5232, 5985), (5320, 5886)]