217416980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{5521}}^1$

素因数の和:5720

約数の個数: 48

約数和(自身を含む): 500955840

約数和(自身を除く): 283538860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 179, 220, 358, 716, 895, 1790, 1969, 3580, 3938, 5521, 7876, 9845, 11042, 19690, 22084, 27605, 39380, 55210, 60731, 110420, 121462, 242924, 303655, 607310, 988259, 1214620, 1976518, 3953036, 4941295, 9882590, 10870849, 19765180, 21741698, 43483396, 54354245, 108708490, 217416980]

約数ペア:

[(1, 217416980), (2, 108708490), (4, 54354245), (5, 43483396), (10, 21741698), (11, 19765180), (20, 10870849), (22, 9882590), (44, 4941295), (55, 3953036), (110, 1976518), (179, 1214620), (220, 988259), (358, 607310), (716, 303655), (895, 242924), (1790, 121462), (1969, 110420), (3580, 60731), (3938, 55210), (5521, 39380), (7876, 27605), (9845, 22084), (11042, 19690)]