20443740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4799}}^1$

素因数の和:4882

約数の個数: 48

約数和(自身を含む): 58060800

約数和(自身を除く): 37617060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 4799, 9598, 14397, 19196, 23995, 28794, 47990, 57588, 71985, 95980, 143970, 287940, 340729, 681458, 1022187, 1362916, 1703645, 2044374, 3407290, 4088748, 5110935, 6814580, 10221870, 20443740]

約数ペア:

[(1, 20443740), (2, 10221870), (3, 6814580), (4, 5110935), (5, 4088748), (6, 3407290), (10, 2044374), (12, 1703645), (15, 1362916), (20, 1022187), (30, 681458), (60, 340729), (71, 287940), (142, 143970), (213, 95980), (284, 71985), (355, 57588), (426, 47990), (710, 28794), (852, 23995), (1065, 19196), (1420, 14397), (2130, 9598), (4260, 4799)]