20828730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53407}}^1$

素因数の和:53430

約数の個数: 32

約数和(自身を含む): 53835264

約数和(自身を除く): 33006534

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 53407, 106814, 160221, 267035, 320442, 534070, 694291, 801105, 1388582, 1602210, 2082873, 3471455, 4165746, 6942910, 10414365, 20828730]

約数ペア:

[(1, 20828730), (2, 10414365), (3, 6942910), (5, 4165746), (6, 3471455), (10, 2082873), (13, 1602210), (15, 1388582), (26, 801105), (30, 694291), (39, 534070), (65, 320442), (78, 267035), (130, 160221), (195, 106814), (390, 53407)]