90236860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{644549}}^1$

素因数の和:644565

約数の個数: 24

約数和(自身を含む): 216568800

約数和(自身を除く): 126331940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 644549, 1289098, 2578196, 3222745, 4511843, 6445490, 9023686, 12890980, 18047372, 22559215, 45118430, 90236860]

約数ペア:

[(1, 90236860), (2, 45118430), (4, 22559215), (5, 18047372), (7, 12890980), (10, 9023686), (14, 6445490), (20, 4511843), (28, 3222745), (35, 2578196), (70, 1289098), (140, 644549)]