25224875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1$

素因数の和:109

約数の個数: 48

約数和(自身を含む): 36612576

約数和(自身を除く): 11387701

約数列:

[1, 5, 13, 19, 25, 43, 65, 95, 125, 215, 247, 325, 361, 475, 559, 817, 1075, 1235, 1625, 1805, 2375, 2795, 4085, 4693, 5375, 6175, 9025, 10621, 13975, 15523, 20425, 23465, 30875, 45125, 53105, 69875, 77615, 102125, 117325, 201799, 265525, 388075, 586625, 1008995, 1327625, 1940375, 5044975, 25224875]

約数ペア:

[(1, 25224875), (5, 5044975), (13, 1940375), (19, 1327625), (25, 1008995), (43, 586625), (65, 388075), (95, 265525), (125, 201799), (215, 117325), (247, 102125), (325, 77615), (361, 69875), (475, 53105), (559, 45125), (817, 30875), (1075, 23465), (1235, 20425), (1625, 15523), (1805, 13975), (2375, 10621), (2795, 9025), (4085, 6175), (4693, 5375)]