20565381004

素因数分解:

$2^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{601}}^1\times {\mathrm{16741}}^1$

素因数の和:17426

約数の個数: 48

約数和(自身を含む): 41766066496

約数和(自身を除く): 21200685492

約数列:

[1, 2, 4, 7, 14, 28, 73, 146, 292, 511, 601, 1022, 1202, 2044, 2404, 4207, 8414, 16741, 16828, 33482, 43873, 66964, 87746, 117187, 175492, 234374, 307111, 468748, 614222, 1222093, 1228444, 2444186, 4888372, 8554651, 10061341, 17109302, 20122682, 34218604, 40245364, 70429387, 140858774, 281717548, 734477893, 1468955786, 2937911572, 5141345251, 10282690502, 20565381004]

約数ペア:

[(1, 20565381004), (2, 10282690502), (4, 5141345251), (7, 2937911572), (14, 1468955786), (28, 734477893), (73, 281717548), (146, 140858774), (292, 70429387), (511, 40245364), (601, 34218604), (1022, 20122682), (1202, 17109302), (2044, 10061341), (2404, 8554651), (4207, 4888372), (8414, 2444186), (16741, 1228444), (16828, 1222093), (33482, 614222), (43873, 468748), (66964, 307111), (87746, 234374), (117187, 175492)]