19123780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73553}}^1$

素因数の和:73575

約数の個数: 24

約数和(自身を含む): 43249752

約数和(自身を除く): 24125972

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 73553, 147106, 294212, 367765, 735530, 956189, 1471060, 1912378, 3824756, 4780945, 9561890, 19123780]

約数ペア:

[(1, 19123780), (2, 9561890), (4, 4780945), (5, 3824756), (10, 1912378), (13, 1471060), (20, 956189), (26, 735530), (52, 367765), (65, 294212), (130, 147106), (260, 73553)]