21920140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5861}}^1$

素因数の和:5898

約数の個数: 48

約数和(自身を含む): 53180064

約数和(自身を除く): 31259924

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 5861, 11722, 23444, 29305, 58610, 64471, 99637, 117220, 128942, 199274, 257884, 322355, 398548, 498185, 644710, 996370, 1096007, 1289420, 1992740, 2192014, 4384028, 5480035, 10960070, 21920140]

約数ペア:

[(1, 21920140), (2, 10960070), (4, 5480035), (5, 4384028), (10, 2192014), (11, 1992740), (17, 1289420), (20, 1096007), (22, 996370), (34, 644710), (44, 498185), (55, 398548), (68, 322355), (85, 257884), (110, 199274), (170, 128942), (187, 117220), (220, 99637), (340, 64471), (374, 58610), (748, 29305), (935, 23444), (1870, 11722), (3740, 5861)]