161006780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{379}}^1\times {\mathrm{1931}}^1$

素因数の和:2330

約数の個数: 48

約数和(自身を含む): 370016640

約数和(自身を除く): 209009860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 379, 758, 1516, 1895, 1931, 3790, 3862, 4169, 7580, 7724, 8338, 9655, 16676, 19310, 20845, 21241, 38620, 41690, 42482, 83380, 84964, 106205, 212410, 424820, 731849, 1463698, 2927396, 3659245, 7318490, 8050339, 14636980, 16100678, 32201356, 40251695, 80503390, 161006780]

約数ペア:

[(1, 161006780), (2, 80503390), (4, 40251695), (5, 32201356), (10, 16100678), (11, 14636980), (20, 8050339), (22, 7318490), (44, 3659245), (55, 2927396), (110, 1463698), (220, 731849), (379, 424820), (758, 212410), (1516, 106205), (1895, 84964), (1931, 83380), (3790, 42482), (3862, 41690), (4169, 38620), (7580, 21241), (7724, 20845), (8338, 19310), (9655, 16676)]