15696798640

素因数分解:

$2^4\times 5^1\times {\mathrm{491}}^1\times {\mathrm{399613}}^1$

素因数の和:400117

約数の個数: 40

約数和(自身を含む): 36569476368

約数和(自身を除く): 20872677728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 491, 982, 1964, 2455, 3928, 4910, 7856, 9820, 19640, 39280, 399613, 799226, 1598452, 1998065, 3196904, 3996130, 6393808, 7992260, 15984520, 31969040, 196209983, 392419966, 784839932, 981049915, 1569679864, 1962099830, 3139359728, 3924199660, 7848399320, 15696798640]

約数ペア:

[(1, 15696798640), (2, 7848399320), (4, 3924199660), (5, 3139359728), (8, 1962099830), (10, 1569679864), (16, 981049915), (20, 784839932), (40, 392419966), (80, 196209983), (491, 31969040), (982, 15984520), (1964, 7992260), (2455, 6393808), (3928, 3996130), (4910, 3196904), (7856, 1998065), (9820, 1598452), (19640, 799226), (39280, 399613)]