31311240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1$

素因数の和:507

約数の個数: 128

約数和(自身を含む): 102297600

約数和(自身を除く): 70986360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 31, 38, 40, 57, 60, 62, 76, 93, 95, 114, 120, 124, 152, 155, 186, 190, 228, 248, 285, 310, 372, 380, 443, 456, 465, 570, 589, 620, 744, 760, 886, 930, 1140, 1178, 1240, 1329, 1767, 1772, 1860, 2215, 2280, 2356, 2658, 2945, 3534, 3544, 3720, 4430, 4712, 5316, 5890, 6645, 7068, 8417, 8835, 8860, 10632, 11780, 13290, 13733, 14136, 16834, 17670, 17720, 23560, 25251, 26580, 27466, 33668, 35340, 41199, 42085, 50502, 53160, 54932, 67336, 68665, 70680, 82398, 84170, 101004, 109864, 126255, 137330, 164796, 168340, 202008, 205995, 252510, 260927, 274660, 329592, 336680, 411990, 505020, 521854, 549320, 782781, 823980, 1010040, 1043708, 1304635, 1565562, 1647960, 2087416, 2609270, 3131124, 3913905, 5218540, 6262248, 7827810, 10437080, 15655620, 31311240]

約数ペア:

[(1, 31311240), (2, 15655620), (3, 10437080), (4, 7827810), (5, 6262248), (6, 5218540), (8, 3913905), (10, 3131124), (12, 2609270), (15, 2087416), (19, 1647960), (20, 1565562), (24, 1304635), (30, 1043708), (31, 1010040), (38, 823980), (40, 782781), (57, 549320), (60, 521854), (62, 505020), (76, 411990), (93, 336680), (95, 329592), (114, 274660), (120, 260927), (124, 252510), (152, 205995), (155, 202008), (186, 168340), (190, 164796), (228, 137330), (248, 126255), (285, 109864), (310, 101004), (372, 84170), (380, 82398), (443, 70680), (456, 68665), (465, 67336), (570, 54932), (589, 53160), (620, 50502), (744, 42085), (760, 41199), (886, 35340), (930, 33668), (1140, 27466), (1178, 26580), (1240, 25251), (1329, 23560), (1767, 17720), (1772, 17670), (1860, 16834), (2215, 14136), (2280, 13733), (2356, 13290), (2658, 11780), (2945, 10632), (3534, 8860), (3544, 8835), (3720, 8417), (4430, 7068), (4712, 6645), (5316, 5890)]