64954040

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{10343}}^1$

素因数の和:10511

約数の個数: 32

約数和(自身を含む): 147091680

約数和(自身を除く): 82137640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 10343, 20686, 41372, 51715, 82744, 103430, 206860, 413720, 1623851, 3247702, 6495404, 8119255, 12990808, 16238510, 32477020, 64954040]

約数ペア:

[(1, 64954040), (2, 32477020), (4, 16238510), (5, 12990808), (8, 8119255), (10, 6495404), (20, 3247702), (40, 1623851), (157, 413720), (314, 206860), (628, 103430), (785, 82744), (1256, 51715), (1570, 41372), (3140, 20686), (6280, 10343)]