201321489620

素因数分解:

$2^2\times 5^1\times {\mathrm{4451}}^1\times {\mathrm{2261531}}^1$

素因数の和:2265991

約数の個数: 24

約数和(自身を含む): 422870299488

約数和(自身を除く): 221548809868

約数列:

[1, 2, 4, 5, 10, 20, 4451, 8902, 17804, 22255, 44510, 89020, 2261531, 4523062, 9046124, 11307655, 22615310, 45230620, 10066074481, 20132148962, 40264297924, 50330372405, 100660744810, 201321489620]

約数ペア:

[(1, 201321489620), (2, 100660744810), (4, 50330372405), (5, 40264297924), (10, 20132148962), (20, 10066074481), (4451, 45230620), (8902, 22615310), (17804, 11307655), (22255, 9046124), (44510, 4523062), (89020, 2261531)]