90641960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{7841}}^1$

素因数の和:7886

約数の個数: 48

約数和(自身を含む): 216674460

約数和(自身を除く): 126032500

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 289, 340, 578, 680, 1156, 1445, 2312, 2890, 5780, 7841, 11560, 15682, 31364, 39205, 62728, 78410, 133297, 156820, 266594, 313640, 533188, 666485, 1066376, 1332970, 2266049, 2665940, 4532098, 5331880, 9064196, 11330245, 18128392, 22660490, 45320980, 90641960]

約数ペア:

[(1, 90641960), (2, 45320980), (4, 22660490), (5, 18128392), (8, 11330245), (10, 9064196), (17, 5331880), (20, 4532098), (34, 2665940), (40, 2266049), (68, 1332970), (85, 1066376), (136, 666485), (170, 533188), (289, 313640), (340, 266594), (578, 156820), (680, 133297), (1156, 78410), (1445, 62728), (2312, 39205), (2890, 31364), (5780, 15682), (7841, 11560)]