31317390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:139

約数の個数: 144

約数和(自身を含む): 92495520

約数和(自身を除く): 61178130

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 29, 30, 39, 45, 58, 65, 71, 78, 87, 90, 117, 130, 142, 145, 169, 174, 195, 213, 234, 261, 290, 338, 355, 377, 390, 426, 435, 507, 522, 585, 639, 710, 754, 845, 870, 923, 1014, 1065, 1131, 1170, 1278, 1305, 1521, 1690, 1846, 1885, 2059, 2130, 2262, 2535, 2610, 2769, 3042, 3195, 3393, 3770, 4118, 4615, 4901, 5070, 5538, 5655, 6177, 6390, 6786, 7605, 8307, 9230, 9802, 10295, 11310, 11999, 12354, 13845, 14703, 15210, 16614, 16965, 18531, 20590, 23998, 24505, 26767, 27690, 29406, 30885, 33930, 35997, 37062, 41535, 44109, 49010, 53534, 59995, 61770, 71994, 73515, 80301, 83070, 88218, 92655, 107991, 119990, 133835, 147030, 160602, 179985, 185310, 215982, 220545, 240903, 267670, 347971, 359970, 401505, 441090, 481806, 539955, 695942, 803010, 1043913, 1079910, 1204515, 1739855, 2087826, 2409030, 3131739, 3479710, 5219565, 6263478, 10439130, 15658695, 31317390]

約数ペア:

[(1, 31317390), (2, 15658695), (3, 10439130), (5, 6263478), (6, 5219565), (9, 3479710), (10, 3131739), (13, 2409030), (15, 2087826), (18, 1739855), (26, 1204515), (29, 1079910), (30, 1043913), (39, 803010), (45, 695942), (58, 539955), (65, 481806), (71, 441090), (78, 401505), (87, 359970), (90, 347971), (117, 267670), (130, 240903), (142, 220545), (145, 215982), (169, 185310), (174, 179985), (195, 160602), (213, 147030), (234, 133835), (261, 119990), (290, 107991), (338, 92655), (355, 88218), (377, 83070), (390, 80301), (426, 73515), (435, 71994), (507, 61770), (522, 59995), (585, 53534), (639, 49010), (710, 44109), (754, 41535), (845, 37062), (870, 35997), (923, 33930), (1014, 30885), (1065, 29406), (1131, 27690), (1170, 26767), (1278, 24505), (1305, 23998), (1521, 20590), (1690, 18531), (1846, 16965), (1885, 16614), (2059, 15210), (2130, 14703), (2262, 13845), (2535, 12354), (2610, 11999), (2769, 11310), (3042, 10295), (3195, 9802), (3393, 9230), (3770, 8307), (4118, 7605), (4615, 6786), (4901, 6390), (5070, 6177), (5538, 5655)]