1247996920

素因数分解:

$2^3\times 5^1\times {\mathrm{3533}}^1\times {\mathrm{8831}}^1$

素因数の和:12375

約数の個数: 32

約数和(自身を含む): 2809105920

約数和(自身を除く): 1561109000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3533, 7066, 8831, 14132, 17662, 17665, 28264, 35324, 35330, 44155, 70648, 70660, 88310, 141320, 176620, 353240, 31199923, 62399846, 124799692, 155999615, 249599384, 311999230, 623998460, 1247996920]

約数ペア:

[(1, 1247996920), (2, 623998460), (4, 311999230), (5, 249599384), (8, 155999615), (10, 124799692), (20, 62399846), (40, 31199923), (3533, 353240), (7066, 176620), (8831, 141320), (14132, 88310), (17662, 70660), (17665, 70648), (28264, 44155), (35324, 35330)]