20001564

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{953}}^1$

素因数の和:1027

約数の個数: 72

約数和(自身を含む): 56255472

約数和(自身を除く): 36253908

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 53, 66, 99, 106, 132, 159, 198, 212, 318, 396, 477, 583, 636, 953, 954, 1166, 1749, 1906, 1908, 2332, 2859, 3498, 3812, 5247, 5718, 6996, 8577, 10483, 10494, 11436, 17154, 20966, 20988, 31449, 34308, 41932, 50509, 62898, 94347, 101018, 125796, 151527, 188694, 202036, 303054, 377388, 454581, 555599, 606108, 909162, 1111198, 1666797, 1818324, 2222396, 3333594, 5000391, 6667188, 10000782, 20001564]

約数ペア:

[(1, 20001564), (2, 10000782), (3, 6667188), (4, 5000391), (6, 3333594), (9, 2222396), (11, 1818324), (12, 1666797), (18, 1111198), (22, 909162), (33, 606108), (36, 555599), (44, 454581), (53, 377388), (66, 303054), (99, 202036), (106, 188694), (132, 151527), (159, 125796), (198, 101018), (212, 94347), (318, 62898), (396, 50509), (477, 41932), (583, 34308), (636, 31449), (953, 20988), (954, 20966), (1166, 17154), (1749, 11436), (1906, 10494), (1908, 10483), (2332, 8577), (2859, 6996), (3498, 5718), (3812, 5247)]