648831080

素因数分解:

$2^3\times 5^1\times {\mathrm{1423}}^1\times {\mathrm{11399}}^1$

素因数の和:12833

約数の個数: 32

約数和(自身を含む): 1461024000

約数和(自身を除く): 812192920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1423, 2846, 5692, 7115, 11384, 11399, 14230, 22798, 28460, 45596, 56920, 56995, 91192, 113990, 227980, 455960, 16220777, 32441554, 64883108, 81103885, 129766216, 162207770, 324415540, 648831080]

約数ペア:

[(1, 648831080), (2, 324415540), (4, 162207770), (5, 129766216), (8, 81103885), (10, 64883108), (20, 32441554), (40, 16220777), (1423, 455960), (2846, 227980), (5692, 113990), (7115, 91192), (11384, 56995), (11399, 56920), (14230, 45596), (22798, 28460)]