18217420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{70067}}^1$

素因数の和:70089

約数の個数: 24

約数和(自身を含む): 41199984

約数和(自身を除く): 22982564

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 70067, 140134, 280268, 350335, 700670, 910871, 1401340, 1821742, 3643484, 4554355, 9108710, 18217420]

約数ペア:

[(1, 18217420), (2, 9108710), (4, 4554355), (5, 3643484), (10, 1821742), (13, 1401340), (20, 910871), (26, 700670), (52, 350335), (65, 280268), (130, 140134), (260, 70067)]