4640920

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{739}}^1$

素因数の和:907

約数の個数: 32

約数和(自身を含む): 10522800

約数和(自身を除く): 5881880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 739, 785, 1256, 1478, 1570, 2956, 3140, 3695, 5912, 6280, 7390, 14780, 29560, 116023, 232046, 464092, 580115, 928184, 1160230, 2320460, 4640920]

約数ペア:

[(1, 4640920), (2, 2320460), (4, 1160230), (5, 928184), (8, 580115), (10, 464092), (20, 232046), (40, 116023), (157, 29560), (314, 14780), (628, 7390), (739, 6280), (785, 5912), (1256, 3695), (1478, 3140), (1570, 2956)]