19620575

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{827}}^1$

素因数の和:923

約数の個数: 24

約数和(自身を含む): 26592048

約数和(自身を除く): 6971473

約数列:

[1, 5, 13, 25, 65, 73, 325, 365, 827, 949, 1825, 4135, 4745, 10751, 20675, 23725, 53755, 60371, 268775, 301855, 784823, 1509275, 3924115, 19620575]

約数ペア:

[(1, 19620575), (5, 3924115), (13, 1509275), (25, 784823), (65, 301855), (73, 268775), (325, 60371), (365, 53755), (827, 23725), (949, 20675), (1825, 10751), (4135, 4745)]