90262340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{644731}}^1$

素因数の和:644747

約数の個数: 24

約数和(自身を含む): 216629952

約数和(自身を除く): 126367612

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 644731, 1289462, 2578924, 3223655, 4513117, 6447310, 9026234, 12894620, 18052468, 22565585, 45131170, 90262340]

約数ペア:

[(1, 90262340), (2, 45131170), (4, 22565585), (5, 18052468), (7, 12894620), (10, 9026234), (14, 6447310), (20, 4513117), (28, 3223655), (35, 2578924), (70, 1289462), (140, 644731)]