201615980

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{2801}}^1$

素因数の和:2930

約数の個数: 48

約数和(自身を含む): 437784480

約数和(自身を除く): 236168500

約数列:

[1, 2, 4, 5, 10, 20, 59, 61, 118, 122, 236, 244, 295, 305, 590, 610, 1180, 1220, 2801, 3599, 5602, 7198, 11204, 14005, 14396, 17995, 28010, 35990, 56020, 71980, 165259, 170861, 330518, 341722, 661036, 683444, 826295, 854305, 1652590, 1708610, 3305180, 3417220, 10080799, 20161598, 40323196, 50403995, 100807990, 201615980]

約数ペア:

[(1, 201615980), (2, 100807990), (4, 50403995), (5, 40323196), (10, 20161598), (20, 10080799), (59, 3417220), (61, 3305180), (118, 1708610), (122, 1652590), (236, 854305), (244, 826295), (295, 683444), (305, 661036), (590, 341722), (610, 330518), (1180, 170861), (1220, 165259), (2801, 71980), (3599, 56020), (5602, 35990), (7198, 28010), (11204, 17995), (14005, 14396)]