64853720

素因数分解:

$2^3\times 5^1\times {\mathrm{941}}^1\times {\mathrm{1723}}^1$

素因数の和:2675

約数の個数: 32

約数和(自身を含む): 146160720

約数和(自身を除く): 81307000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 941, 1723, 1882, 3446, 3764, 4705, 6892, 7528, 8615, 9410, 13784, 17230, 18820, 34460, 37640, 68920, 1621343, 3242686, 6485372, 8106715, 12970744, 16213430, 32426860, 64853720]

約数ペア:

[(1, 64853720), (2, 32426860), (4, 16213430), (5, 12970744), (8, 8106715), (10, 6485372), (20, 3242686), (40, 1621343), (941, 68920), (1723, 37640), (1882, 34460), (3446, 18820), (3764, 17230), (4705, 13784), (6892, 9410), (7528, 8615)]