90450580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{2087}}^1$

素因数の和:2304

約数の個数: 48

約数和(自身を含む): 208365696

約数和(自身を除く): 117915116

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 197, 220, 394, 788, 985, 1970, 2087, 2167, 3940, 4174, 4334, 8348, 8668, 10435, 10835, 20870, 21670, 22957, 41740, 43340, 45914, 91828, 114785, 229570, 411139, 459140, 822278, 1644556, 2055695, 4111390, 4522529, 8222780, 9045058, 18090116, 22612645, 45225290, 90450580]

約数ペア:

[(1, 90450580), (2, 45225290), (4, 22612645), (5, 18090116), (10, 9045058), (11, 8222780), (20, 4522529), (22, 4111390), (44, 2055695), (55, 1644556), (110, 822278), (197, 459140), (220, 411139), (394, 229570), (788, 114785), (985, 91828), (1970, 45914), (2087, 43340), (2167, 41740), (3940, 22957), (4174, 21670), (4334, 20870), (8348, 10835), (8668, 10435)]