205128220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{4733}}^1$

素因数の和:4950

約数の個数: 48

約数和(自身を含む): 472415328

約数和(自身を除く): 267287108

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 197, 220, 394, 788, 985, 1970, 2167, 3940, 4334, 4733, 8668, 9466, 10835, 18932, 21670, 23665, 43340, 47330, 52063, 94660, 104126, 208252, 260315, 520630, 932401, 1041260, 1864802, 3729604, 4662005, 9324010, 10256411, 18648020, 20512822, 41025644, 51282055, 102564110, 205128220]

約数ペア:

[(1, 205128220), (2, 102564110), (4, 51282055), (5, 41025644), (10, 20512822), (11, 18648020), (20, 10256411), (22, 9324010), (44, 4662005), (55, 3729604), (110, 1864802), (197, 1041260), (220, 932401), (394, 520630), (788, 260315), (985, 208252), (1970, 104126), (2167, 94660), (3940, 52063), (4334, 47330), (4733, 43340), (8668, 23665), (9466, 21670), (10835, 18932)]