173840420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{668617}}^1$

素因数の和:668639

約数の個数: 24

約数和(自身を含む): 393147384

約数和(自身を除く): 219306964

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 668617, 1337234, 2674468, 3343085, 6686170, 8692021, 13372340, 17384042, 34768084, 43460105, 86920210, 173840420]

約数ペア:

[(1, 173840420), (2, 86920210), (4, 43460105), (5, 34768084), (10, 17384042), (13, 13372340), (20, 8692021), (26, 6686170), (52, 3343085), (65, 2674468), (130, 1337234), (260, 668617)]