20442630

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:142

約数の個数: 128

約数和(自身を含む): 57480192

約数和(自身を除く): 37037562

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 23, 26, 30, 39, 43, 46, 53, 65, 69, 78, 86, 106, 115, 129, 130, 138, 159, 195, 215, 230, 258, 265, 299, 318, 345, 390, 430, 530, 559, 598, 645, 689, 690, 795, 897, 989, 1118, 1219, 1290, 1378, 1495, 1590, 1677, 1794, 1978, 2067, 2279, 2438, 2795, 2967, 2990, 3354, 3445, 3657, 4134, 4485, 4558, 4945, 5590, 5934, 6095, 6837, 6890, 7314, 8385, 8970, 9890, 10335, 11395, 12190, 12857, 13674, 14835, 15847, 16770, 18285, 20670, 22790, 25714, 29627, 29670, 31694, 34185, 36570, 38571, 47541, 52417, 59254, 64285, 68370, 77142, 79235, 88881, 95082, 104834, 128570, 148135, 157251, 158470, 177762, 192855, 237705, 262085, 296270, 314502, 385710, 444405, 475410, 524170, 681421, 786255, 888810, 1362842, 1572510, 2044263, 3407105, 4088526, 6814210, 10221315, 20442630]

約数ペア:

[(1, 20442630), (2, 10221315), (3, 6814210), (5, 4088526), (6, 3407105), (10, 2044263), (13, 1572510), (15, 1362842), (23, 888810), (26, 786255), (30, 681421), (39, 524170), (43, 475410), (46, 444405), (53, 385710), (65, 314502), (69, 296270), (78, 262085), (86, 237705), (106, 192855), (115, 177762), (129, 158470), (130, 157251), (138, 148135), (159, 128570), (195, 104834), (215, 95082), (230, 88881), (258, 79235), (265, 77142), (299, 68370), (318, 64285), (345, 59254), (390, 52417), (430, 47541), (530, 38571), (559, 36570), (598, 34185), (645, 31694), (689, 29670), (690, 29627), (795, 25714), (897, 22790), (989, 20670), (1118, 18285), (1219, 16770), (1290, 15847), (1378, 14835), (1495, 13674), (1590, 12857), (1677, 12190), (1794, 11395), (1978, 10335), (2067, 9890), (2279, 8970), (2438, 8385), (2795, 7314), (2967, 6890), (2990, 6837), (3354, 6095), (3445, 5934), (3657, 5590), (4134, 4945), (4485, 4558)]