71491760

素因数分解:

$2^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{2251}}^1$

素因数の和:2661

約数の個数: 40

約数和(自身を含む): 166711056

約数和(自身を除く): 95219296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397, 794, 1588, 1985, 2251, 3176, 3970, 4502, 6352, 7940, 9004, 11255, 15880, 18008, 22510, 31760, 36016, 45020, 90040, 180080, 893647, 1787294, 3574588, 4468235, 7149176, 8936470, 14298352, 17872940, 35745880, 71491760]

約数ペア:

[(1, 71491760), (2, 35745880), (4, 17872940), (5, 14298352), (8, 8936470), (10, 7149176), (16, 4468235), (20, 3574588), (40, 1787294), (80, 893647), (397, 180080), (794, 90040), (1588, 45020), (1985, 36016), (2251, 31760), (3176, 22510), (3970, 18008), (4502, 15880), (6352, 11255), (7940, 9004)]