25525550

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{277}}^1$

素因数の和:405

約数の個数: 48

約数和(自身を含む): 50673840

約数和(自身を除く): 25148290

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 97, 190, 194, 277, 475, 485, 554, 950, 970, 1385, 1843, 2425, 2770, 3686, 4850, 5263, 6925, 9215, 10526, 13850, 18430, 26315, 26869, 46075, 52630, 53738, 92150, 131575, 134345, 263150, 268690, 510511, 671725, 1021022, 1343450, 2552555, 5105110, 12762775, 25525550]

約数ペア:

[(1, 25525550), (2, 12762775), (5, 5105110), (10, 2552555), (19, 1343450), (25, 1021022), (38, 671725), (50, 510511), (95, 268690), (97, 263150), (190, 134345), (194, 131575), (277, 92150), (475, 53738), (485, 52630), (554, 46075), (950, 26869), (970, 26315), (1385, 18430), (1843, 13850), (2425, 10526), (2770, 9215), (3686, 6925), (4850, 5263)]