20218557055

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^2$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 25714675584

約数和(自身を除く): 5496118529

約数列:

[1, 5, 47, 61, 73, 139, 235, 305, 365, 695, 2867, 3431, 4453, 6533, 8479, 10147, 14335, 17155, 19321, 22265, 32665, 42395, 50735, 96605, 209291, 398513, 476909, 618967, 908087, 1046455, 1178581, 1410433, 1992565, 2384545, 3094835, 4540435, 5892905, 7052165, 29091449, 55393307, 66290351, 86036413, 145457245, 276966535, 331451755, 430182065, 4043711411, 20218557055]

約数ペア:

[(1, 20218557055), (5, 4043711411), (47, 430182065), (61, 331451755), (73, 276966535), (139, 145457245), (235, 86036413), (305, 66290351), (365, 55393307), (695, 29091449), (2867, 7052165), (3431, 5892905), (4453, 4540435), (6533, 3094835), (8479, 2384545), (10147, 1992565), (14335, 1410433), (17155, 1178581), (19321, 1046455), (22265, 908087), (32665, 618967), (42395, 476909), (50735, 398513), (96605, 209291)]