19205420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73867}}^1$

素因数の和:73889

約数の個数: 24

約数和(自身を含む): 43434384

約数和(自身を除く): 24228964

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 73867, 147734, 295468, 369335, 738670, 960271, 1477340, 1920542, 3841084, 4801355, 9602710, 19205420]

約数ペア:

[(1, 19205420), (2, 9602710), (4, 4801355), (5, 3841084), (10, 1920542), (13, 1477340), (20, 960271), (26, 738670), (52, 369335), (65, 295468), (130, 147734), (260, 73867)]