87672220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{2129}}^1$

素因数の和:2238

約数の個数: 48

約数和(自身を含む): 193233600

約数和(自身を除く): 105561380

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 71, 116, 142, 145, 284, 290, 355, 580, 710, 1420, 2059, 2129, 4118, 4258, 8236, 8516, 10295, 10645, 20590, 21290, 41180, 42580, 61741, 123482, 151159, 246964, 302318, 308705, 604636, 617410, 755795, 1234820, 1511590, 3023180, 4383611, 8767222, 17534444, 21918055, 43836110, 87672220]

約数ペア:

[(1, 87672220), (2, 43836110), (4, 21918055), (5, 17534444), (10, 8767222), (20, 4383611), (29, 3023180), (58, 1511590), (71, 1234820), (116, 755795), (142, 617410), (145, 604636), (284, 308705), (290, 302318), (355, 246964), (580, 151159), (710, 123482), (1420, 61741), (2059, 42580), (2129, 41180), (4118, 21290), (4258, 20590), (8236, 10645), (8516, 10295)]