25890475

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:160

約数の個数: 48

約数和(自身を含む): 37185120

約数和(自身を除く): 11294645

約数列:

[1, 5, 13, 25, 29, 41, 65, 67, 145, 205, 325, 335, 377, 533, 725, 871, 1025, 1189, 1675, 1885, 1943, 2665, 2747, 4355, 5945, 9425, 9715, 13325, 13735, 15457, 21775, 25259, 29725, 35711, 48575, 68675, 77285, 79663, 126295, 178555, 386425, 398315, 631475, 892775, 1035619, 1991575, 5178095, 25890475]

約数ペア:

[(1, 25890475), (5, 5178095), (13, 1991575), (25, 1035619), (29, 892775), (41, 631475), (65, 398315), (67, 386425), (145, 178555), (205, 126295), (325, 79663), (335, 77285), (377, 68675), (533, 48575), (725, 35711), (871, 29725), (1025, 25259), (1189, 21775), (1675, 15457), (1885, 13735), (1943, 13325), (2665, 9715), (2747, 9425), (4355, 5945)]