9888909820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6964021}}^1$

素因数の和:6964101

約数の個数: 24

約数和(自身を含む): 21059202528

約数和(自身を除く): 11170292708

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 6964021, 13928042, 27856084, 34820105, 69640210, 139280420, 494445491, 988890982, 1977781964, 2472227455, 4944454910, 9888909820]

約数ペア:

[(1, 9888909820), (2, 4944454910), (4, 2472227455), (5, 1977781964), (10, 988890982), (20, 494445491), (71, 139280420), (142, 69640210), (284, 34820105), (355, 27856084), (710, 13928042), (1420, 6964021)]