291254259440

素因数分解:

$2^4\times 5^1\times {\mathrm{3640678243}}^1$

素因数の和:3640678256

約数の個数: 20

約数和(自身を含む): 677166153384

約数和(自身を除く): 385911893944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3640678243, 7281356486, 14562712972, 18203391215, 29125425944, 36406782430, 58250851888, 72813564860, 145627129720, 291254259440]

約数ペア:

[(1, 291254259440), (2, 145627129720), (4, 72813564860), (5, 58250851888), (8, 36406782430), (10, 29125425944), (16, 18203391215), (20, 14562712972), (40, 7281356486), (80, 3640678243)]