72313040

素因数分解:

$2^4\times 5^1\times {\mathrm{903913}}^1$

素因数の和:903926

約数の個数: 20

約数和(自身を含む): 168128004

約数和(自身を除く): 95814964

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 903913, 1807826, 3615652, 4519565, 7231304, 9039130, 14462608, 18078260, 36156520, 72313040]

約数ペア:

[(1, 72313040), (2, 36156520), (4, 18078260), (5, 14462608), (8, 9039130), (10, 7231304), (16, 4519565), (20, 3615652), (40, 1807826), (80, 903913)]