31318560

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1$

素因数の和:280

約数の個数: 288

約数和(自身を含む): 132088320

約数和(自身を除く): 100769760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 26, 28, 30, 32, 35, 36, 39, 40, 42, 45, 48, 52, 56, 60, 63, 65, 70, 72, 78, 80, 84, 90, 91, 96, 104, 105, 112, 117, 120, 126, 130, 140, 144, 156, 160, 168, 180, 182, 195, 208, 210, 224, 234, 239, 240, 252, 260, 273, 280, 288, 312, 315, 336, 360, 364, 390, 416, 420, 455, 468, 478, 480, 504, 520, 546, 560, 585, 624, 630, 672, 717, 720, 728, 780, 819, 840, 910, 936, 956, 1008, 1040, 1092, 1120, 1170, 1195, 1248, 1260, 1365, 1434, 1440, 1456, 1560, 1638, 1673, 1680, 1820, 1872, 1912, 2016, 2080, 2151, 2184, 2340, 2390, 2520, 2730, 2868, 2912, 3107, 3120, 3276, 3346, 3360, 3585, 3640, 3744, 3824, 4095, 4302, 4368, 4680, 4780, 5019, 5040, 5460, 5736, 6214, 6240, 6552, 6692, 7170, 7280, 7648, 8190, 8365, 8604, 8736, 9321, 9360, 9560, 10038, 10080, 10755, 10920, 11472, 12428, 13104, 13384, 14340, 14560, 15057, 15535, 16380, 16730, 17208, 18642, 18720, 19120, 20076, 21510, 21749, 21840, 22944, 24856, 25095, 26208, 26768, 27963, 28680, 30114, 31070, 32760, 33460, 34416, 37284, 38240, 40152, 43020, 43498, 43680, 46605, 49712, 50190, 53536, 55926, 57360, 60228, 62140, 65247, 65520, 66920, 68832, 74568, 75285, 80304, 86040, 86996, 93210, 99424, 100380, 108745, 111852, 114720, 120456, 124280, 130494, 131040, 133840, 139815, 149136, 150570, 160608, 172080, 173992, 186420, 195741, 200760, 217490, 223704, 240912, 248560, 260988, 267680, 279630, 298272, 301140, 326235, 344160, 347984, 372840, 391482, 401520, 434980, 447408, 481824, 497120, 521976, 559260, 602280, 652470, 695968, 745680, 782964, 803040, 869960, 894816, 978705, 1043952, 1118520, 1204560, 1304940, 1491360, 1565928, 1739920, 1957410, 2087904, 2237040, 2409120, 2609880, 3131856, 3479840, 3914820, 4474080, 5219760, 6263712, 7829640, 10439520, 15659280, 31318560]

約数ペア:

[(1, 31318560), (2, 15659280), (3, 10439520), (4, 7829640), (5, 6263712), (6, 5219760), (7, 4474080), (8, 3914820), (9, 3479840), (10, 3131856), (12, 2609880), (13, 2409120), (14, 2237040), (15, 2087904), (16, 1957410), (18, 1739920), (20, 1565928), (21, 1491360), (24, 1304940), (26, 1204560), (28, 1118520), (30, 1043952), (32, 978705), (35, 894816), (36, 869960), (39, 803040), (40, 782964), (42, 745680), (45, 695968), (48, 652470), (52, 602280), (56, 559260), (60, 521976), (63, 497120), (65, 481824), (70, 447408), (72, 434980), (78, 401520), (80, 391482), (84, 372840), (90, 347984), (91, 344160), (96, 326235), (104, 301140), (105, 298272), (112, 279630), (117, 267680), (120, 260988), (126, 248560), (130, 240912), (140, 223704), (144, 217490), (156, 200760), (160, 195741), (168, 186420), (180, 173992), (182, 172080), (195, 160608), (208, 150570), (210, 149136), (224, 139815), (234, 133840), (239, 131040), (240, 130494), (252, 124280), (260, 120456), (273, 114720), (280, 111852), (288, 108745), (312, 100380), (315, 99424), (336, 93210), (360, 86996), (364, 86040), (390, 80304), (416, 75285), (420, 74568), (455, 68832), (468, 66920), (478, 65520), (480, 65247), (504, 62140), (520, 60228), (546, 57360), (560, 55926), (585, 53536), (624, 50190), (630, 49712), (672, 46605), (717, 43680), (720, 43498), (728, 43020), (780, 40152), (819, 38240), (840, 37284), (910, 34416), (936, 33460), (956, 32760), (1008, 31070), (1040, 30114), (1092, 28680), (1120, 27963), (1170, 26768), (1195, 26208), (1248, 25095), (1260, 24856), (1365, 22944), (1434, 21840), (1440, 21749), (1456, 21510), (1560, 20076), (1638, 19120), (1673, 18720), (1680, 18642), (1820, 17208), (1872, 16730), (1912, 16380), (2016, 15535), (2080, 15057), (2151, 14560), (2184, 14340), (2340, 13384), (2390, 13104), (2520, 12428), (2730, 11472), (2868, 10920), (2912, 10755), (3107, 10080), (3120, 10038), (3276, 9560), (3346, 9360), (3360, 9321), (3585, 8736), (3640, 8604), (3744, 8365), (3824, 8190), (4095, 7648), (4302, 7280), (4368, 7170), (4680, 6692), (4780, 6552), (5019, 6240), (5040, 6214), (5460, 5736)]