20178487725

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{61609}}^1$

素因数の和:62030

約数の個数: 48

約数和(自身を含む): 36486920640

約数和(自身を除く): 16308432915

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 165, 275, 397, 825, 1191, 1985, 4367, 5955, 9925, 13101, 21835, 29775, 61609, 65505, 109175, 184827, 308045, 327525, 677699, 924135, 1540225, 2033097, 3388495, 4620675, 10165485, 16942475, 24458773, 50827425, 73376319, 122293865, 269046503, 366881595, 611469325, 807139509, 1345232515, 1834407975, 4035697545, 6726162575, 20178487725]

約数ペア:

[(1, 20178487725), (3, 6726162575), (5, 4035697545), (11, 1834407975), (15, 1345232515), (25, 807139509), (33, 611469325), (55, 366881595), (75, 269046503), (165, 122293865), (275, 73376319), (397, 50827425), (825, 24458773), (1191, 16942475), (1985, 10165485), (4367, 4620675), (5955, 3388495), (9925, 2033097), (13101, 1540225), (21835, 924135), (29775, 677699), (61609, 327525), (65505, 308045), (109175, 184827)]