199900025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{373}}^1$

素因数の和:510

約数の個数: 48

約数和(自身を含む): 286325424

約数和(自身を除く): 86425399

約数列:

[1, 5, 13, 17, 25, 65, 85, 97, 221, 325, 373, 425, 485, 1105, 1261, 1649, 1865, 2425, 4849, 5525, 6305, 6341, 8245, 9325, 21437, 24245, 31525, 31705, 36181, 41225, 82433, 107185, 121225, 158525, 180905, 412165, 470353, 535925, 615077, 904525, 2060825, 2351765, 3075385, 7996001, 11758825, 15376925, 39980005, 199900025]

約数ペア:

[(1, 199900025), (5, 39980005), (13, 15376925), (17, 11758825), (25, 7996001), (65, 3075385), (85, 2351765), (97, 2060825), (221, 904525), (325, 615077), (373, 535925), (425, 470353), (485, 412165), (1105, 180905), (1261, 158525), (1649, 121225), (1865, 107185), (2425, 82433), (4849, 41225), (5525, 36181), (6305, 31705), (6341, 31525), (8245, 24245), (9325, 21437)]