20205096575

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{241}}^1\times {\mathrm{317}}^1$

素因数の和:788

約数の個数: 48

約数和(自身を含む): 25764868800

約数和(自身を除く): 5559772225

約数列:

[1, 5, 25, 71, 149, 241, 317, 355, 745, 1205, 1585, 1775, 3725, 6025, 7925, 10579, 17111, 22507, 35909, 47233, 52895, 76397, 85555, 112535, 179545, 236165, 264475, 381985, 427775, 562675, 897725, 1180825, 1909925, 2549539, 3353543, 5424187, 11383153, 12747695, 16767715, 27120935, 56915765, 63738475, 83838575, 135604675, 284578825, 808203863, 4041019315, 20205096575]

約数ペア:

[(1, 20205096575), (5, 4041019315), (25, 808203863), (71, 284578825), (149, 135604675), (241, 83838575), (317, 63738475), (355, 56915765), (745, 27120935), (1205, 16767715), (1585, 12747695), (1775, 11383153), (3725, 5424187), (6025, 3353543), (7925, 2549539), (10579, 1909925), (17111, 1180825), (22507, 897725), (35909, 562675), (47233, 427775), (52895, 381985), (76397, 264475), (85555, 236165), (112535, 179545)]