31850280

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{383}}^1$

素因数の和:421

約数の個数: 256

約数和(自身を含む): 132710400

約数和(自身を除く): 100860120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 24, 27, 28, 30, 33, 35, 36, 40, 42, 44, 45, 54, 55, 56, 60, 63, 66, 70, 72, 77, 84, 88, 90, 99, 105, 108, 110, 120, 126, 132, 135, 140, 154, 165, 168, 180, 189, 198, 210, 216, 220, 231, 252, 264, 270, 280, 297, 308, 315, 330, 360, 378, 383, 385, 396, 420, 440, 462, 495, 504, 540, 594, 616, 630, 660, 693, 756, 766, 770, 792, 840, 924, 945, 990, 1080, 1149, 1155, 1188, 1260, 1320, 1386, 1485, 1512, 1532, 1540, 1848, 1890, 1915, 1980, 2079, 2298, 2310, 2376, 2520, 2681, 2772, 2970, 3064, 3080, 3447, 3465, 3780, 3830, 3960, 4158, 4213, 4596, 4620, 5362, 5544, 5745, 5940, 6894, 6930, 7560, 7660, 8043, 8316, 8426, 9192, 9240, 10341, 10395, 10724, 11490, 11880, 12639, 13405, 13788, 13860, 15320, 16086, 16632, 16852, 17235, 20682, 20790, 21065, 21448, 22980, 24129, 25278, 26810, 27576, 27720, 29491, 32172, 33704, 34470, 37917, 40215, 41364, 41580, 42130, 45960, 48258, 50556, 51705, 53620, 58982, 63195, 64344, 68940, 72387, 75834, 80430, 82728, 83160, 84260, 88473, 96516, 101112, 103410, 107240, 113751, 117964, 120645, 126390, 137880, 144774, 147455, 151668, 160860, 168520, 176946, 189585, 193032, 206820, 227502, 235928, 241290, 252780, 265419, 289548, 294910, 303336, 321720, 353892, 361935, 379170, 413640, 442365, 455004, 482580, 505560, 530838, 568755, 579096, 589820, 707784, 723870, 758340, 796257, 884730, 910008, 965160, 1061676, 1137510, 1179640, 1327095, 1447740, 1516680, 1592514, 1769460, 2123352, 2275020, 2654190, 2895480, 3185028, 3538920, 3981285, 4550040, 5308380, 6370056, 7962570, 10616760, 15925140, 31850280]

約数ペア:

[(1, 31850280), (2, 15925140), (3, 10616760), (4, 7962570), (5, 6370056), (6, 5308380), (7, 4550040), (8, 3981285), (9, 3538920), (10, 3185028), (11, 2895480), (12, 2654190), (14, 2275020), (15, 2123352), (18, 1769460), (20, 1592514), (21, 1516680), (22, 1447740), (24, 1327095), (27, 1179640), (28, 1137510), (30, 1061676), (33, 965160), (35, 910008), (36, 884730), (40, 796257), (42, 758340), (44, 723870), (45, 707784), (54, 589820), (55, 579096), (56, 568755), (60, 530838), (63, 505560), (66, 482580), (70, 455004), (72, 442365), (77, 413640), (84, 379170), (88, 361935), (90, 353892), (99, 321720), (105, 303336), (108, 294910), (110, 289548), (120, 265419), (126, 252780), (132, 241290), (135, 235928), (140, 227502), (154, 206820), (165, 193032), (168, 189585), (180, 176946), (189, 168520), (198, 160860), (210, 151668), (216, 147455), (220, 144774), (231, 137880), (252, 126390), (264, 120645), (270, 117964), (280, 113751), (297, 107240), (308, 103410), (315, 101112), (330, 96516), (360, 88473), (378, 84260), (383, 83160), (385, 82728), (396, 80430), (420, 75834), (440, 72387), (462, 68940), (495, 64344), (504, 63195), (540, 58982), (594, 53620), (616, 51705), (630, 50556), (660, 48258), (693, 45960), (756, 42130), (766, 41580), (770, 41364), (792, 40215), (840, 37917), (924, 34470), (945, 33704), (990, 32172), (1080, 29491), (1149, 27720), (1155, 27576), (1188, 26810), (1260, 25278), (1320, 24129), (1386, 22980), (1485, 21448), (1512, 21065), (1532, 20790), (1540, 20682), (1848, 17235), (1890, 16852), (1915, 16632), (1980, 16086), (2079, 15320), (2298, 13860), (2310, 13788), (2376, 13405), (2520, 12639), (2681, 11880), (2772, 11490), (2970, 10724), (3064, 10395), (3080, 10341), (3447, 9240), (3465, 9192), (3780, 8426), (3830, 8316), (3960, 8043), (4158, 7660), (4213, 7560), (4596, 6930), (4620, 6894), (5362, 5940), (5544, 5745)]