31290160

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1$

素因数の和:123

約数の個数: 120

約数和(自身を含む): 84222288

約数和(自身を除く): 52932128

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 37, 40, 44, 55, 62, 74, 80, 88, 110, 124, 148, 155, 176, 185, 220, 248, 296, 310, 341, 370, 407, 440, 496, 592, 620, 682, 740, 814, 880, 961, 1147, 1240, 1364, 1480, 1628, 1705, 1922, 2035, 2294, 2480, 2728, 2960, 3256, 3410, 3844, 4070, 4588, 4805, 5456, 5735, 6512, 6820, 7688, 8140, 9176, 9610, 10571, 11470, 12617, 13640, 15376, 16280, 18352, 19220, 21142, 22940, 25234, 27280, 32560, 35557, 38440, 42284, 45880, 50468, 52855, 63085, 71114, 76880, 84568, 91760, 100936, 105710, 126170, 142228, 169136, 177785, 201872, 211420, 252340, 284456, 355570, 391127, 422840, 504680, 568912, 711140, 782254, 845680, 1009360, 1422280, 1564508, 1955635, 2844560, 3129016, 3911270, 6258032, 7822540, 15645080, 31290160]

約数ペア:

[(1, 31290160), (2, 15645080), (4, 7822540), (5, 6258032), (8, 3911270), (10, 3129016), (11, 2844560), (16, 1955635), (20, 1564508), (22, 1422280), (31, 1009360), (37, 845680), (40, 782254), (44, 711140), (55, 568912), (62, 504680), (74, 422840), (80, 391127), (88, 355570), (110, 284456), (124, 252340), (148, 211420), (155, 201872), (176, 177785), (185, 169136), (220, 142228), (248, 126170), (296, 105710), (310, 100936), (341, 91760), (370, 84568), (407, 76880), (440, 71114), (496, 63085), (592, 52855), (620, 50468), (682, 45880), (740, 42284), (814, 38440), (880, 35557), (961, 32560), (1147, 27280), (1240, 25234), (1364, 22940), (1480, 21142), (1628, 19220), (1705, 18352), (1922, 16280), (2035, 15376), (2294, 13640), (2480, 12617), (2728, 11470), (2960, 10571), (3256, 9610), (3410, 9176), (3844, 8140), (4070, 7688), (4588, 6820), (4805, 6512), (5456, 5735)]