203811980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{317}}^1$

素因数の和:435

約数の個数: 96

約数和(自身を含む): 476969472

約数和(自身を除く): 273157492

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 61, 62, 68, 85, 122, 124, 155, 170, 244, 305, 310, 317, 340, 527, 610, 620, 634, 1037, 1054, 1220, 1268, 1585, 1891, 2074, 2108, 2635, 3170, 3782, 4148, 5185, 5270, 5389, 6340, 7564, 9455, 9827, 10370, 10540, 10778, 18910, 19337, 19654, 20740, 21556, 26945, 32147, 37820, 38674, 39308, 49135, 53890, 64294, 77348, 96685, 98270, 107780, 128588, 160735, 167059, 193370, 196540, 321470, 328729, 334118, 386740, 599447, 642940, 657458, 668236, 835295, 1198894, 1314916, 1643645, 1670590, 2397788, 2997235, 3287290, 3341180, 5994470, 6574580, 10190599, 11988940, 20381198, 40762396, 50952995, 101905990, 203811980]

約数ペア:

[(1, 203811980), (2, 101905990), (4, 50952995), (5, 40762396), (10, 20381198), (17, 11988940), (20, 10190599), (31, 6574580), (34, 5994470), (61, 3341180), (62, 3287290), (68, 2997235), (85, 2397788), (122, 1670590), (124, 1643645), (155, 1314916), (170, 1198894), (244, 835295), (305, 668236), (310, 657458), (317, 642940), (340, 599447), (527, 386740), (610, 334118), (620, 328729), (634, 321470), (1037, 196540), (1054, 193370), (1220, 167059), (1268, 160735), (1585, 128588), (1891, 107780), (2074, 98270), (2108, 96685), (2635, 77348), (3170, 64294), (3782, 53890), (4148, 49135), (5185, 39308), (5270, 38674), (5389, 37820), (6340, 32147), (7564, 26945), (9455, 21556), (9827, 20740), (10370, 19654), (10540, 19337), (10778, 18910)]