68996540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{202931}}^1$

素因数の和:202957

約数の個数: 24

約数和(自身を含む): 153416592

約数和(自身を除く): 84420052

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 202931, 405862, 811724, 1014655, 2029310, 3449827, 4058620, 6899654, 13799308, 17249135, 34498270, 68996540]

約数ペア:

[(1, 68996540), (2, 34498270), (4, 17249135), (5, 13799308), (10, 6899654), (17, 4058620), (20, 3449827), (34, 2029310), (68, 1014655), (85, 811724), (170, 405862), (340, 202931)]