488691880

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{137273}}^1$

素因数の和:137373

約数の個数: 32

約数和(自身を含む): 1111919400

約数和(自身を除く): 623227520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 137273, 274546, 549092, 686365, 1098184, 1372730, 2745460, 5490920, 12217297, 24434594, 48869188, 61086485, 97738376, 122172970, 244345940, 488691880]

約数ペア:

[(1, 488691880), (2, 244345940), (4, 122172970), (5, 97738376), (8, 61086485), (10, 48869188), (20, 24434594), (40, 12217297), (89, 5490920), (178, 2745460), (356, 1372730), (445, 1098184), (712, 686365), (890, 549092), (1780, 274546), (3560, 137273)]