90123700

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{20959}}^1$

素因数の和:21016

約数の個数: 36

約数和(自身を含む): 200126080

約数和(自身を除く): 110002380

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 860, 1075, 2150, 4300, 20959, 41918, 83836, 104795, 209590, 419180, 523975, 901237, 1047950, 1802474, 2095900, 3604948, 4506185, 9012370, 18024740, 22530925, 45061850, 90123700]

約数ペア:

[(1, 90123700), (2, 45061850), (4, 22530925), (5, 18024740), (10, 9012370), (20, 4506185), (25, 3604948), (43, 2095900), (50, 1802474), (86, 1047950), (100, 901237), (172, 523975), (215, 419180), (430, 209590), (860, 104795), (1075, 83836), (2150, 41918), (4300, 20959)]