200500025

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{839}}^1$

素因数の和:950

約数の個数: 36

約数和(自身を含む): 277065600

約数和(自身を除く): 76565575

約数列:

[1, 5, 11, 25, 55, 79, 121, 275, 395, 605, 839, 869, 1975, 3025, 4195, 4345, 9229, 9559, 20975, 21725, 46145, 47795, 66281, 101519, 230725, 238975, 331405, 507595, 729091, 1657025, 2537975, 3645455, 8020001, 18227275, 40100005, 200500025]

約数ペア:

[(1, 200500025), (5, 40100005), (11, 18227275), (25, 8020001), (55, 3645455), (79, 2537975), (121, 1657025), (275, 729091), (395, 507595), (605, 331405), (839, 238975), (869, 230725), (1975, 101519), (3025, 66281), (4195, 47795), (4345, 46145), (9229, 21725), (9559, 20975)]