265420025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{811}}^1$

素因数の和:906

約数の個数: 48

約数和(自身を含む): 380600640

約数和(自身を除く): 115180615

約数列:

[1, 5, 13, 19, 25, 53, 65, 95, 247, 265, 325, 475, 689, 811, 1007, 1235, 1325, 3445, 4055, 5035, 6175, 10543, 13091, 15409, 17225, 20275, 25175, 42983, 52715, 65455, 77045, 200317, 214915, 263575, 327275, 385225, 558779, 816677, 1001585, 1074575, 2793895, 4083385, 5007925, 10616801, 13969475, 20416925, 53084005, 265420025]

約数ペア:

[(1, 265420025), (5, 53084005), (13, 20416925), (19, 13969475), (25, 10616801), (53, 5007925), (65, 4083385), (95, 2793895), (247, 1074575), (265, 1001585), (325, 816677), (475, 558779), (689, 385225), (811, 327275), (1007, 263575), (1235, 214915), (1325, 200317), (3445, 77045), (4055, 65455), (5035, 52715), (6175, 42983), (10543, 25175), (13091, 20275), (15409, 17225)]