19041455

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{419}}^1$

素因数の和:634

約数の個数: 16

約数和(自身を含む): 23436000

約数和(自身を除く): 4394545

約数列:

[1, 5, 61, 149, 305, 419, 745, 2095, 9089, 25559, 45445, 62431, 127795, 312155, 3808291, 19041455]

約数ペア:

[(1, 19041455), (5, 3808291), (61, 312155), (149, 127795), (305, 62431), (419, 45445), (745, 25559), (2095, 9089)]