18686460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23957}}^1$

素因数の和:23982

約数の個数: 48

約数和(自身を含む): 56349216

約数和(自身を除く): 37662756

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 23957, 47914, 71871, 95828, 119785, 143742, 239570, 287484, 311441, 359355, 479140, 622882, 718710, 934323, 1245764, 1437420, 1557205, 1868646, 3114410, 3737292, 4671615, 6228820, 9343230, 18686460]

約数ペア:

[(1, 18686460), (2, 9343230), (3, 6228820), (4, 4671615), (5, 3737292), (6, 3114410), (10, 1868646), (12, 1557205), (13, 1437420), (15, 1245764), (20, 934323), (26, 718710), (30, 622882), (39, 479140), (52, 359355), (60, 311441), (65, 287484), (78, 239570), (130, 143742), (156, 119785), (195, 95828), (260, 71871), (390, 47914), (780, 23957)]