8198725

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:261

約数の個数: 24

約数和(自身を含む): 10713600

約数和(自身を除く): 2514875

約数列:

[1, 5, 25, 31, 71, 149, 155, 355, 745, 775, 1775, 2201, 3725, 4619, 10579, 11005, 23095, 52895, 55025, 115475, 264475, 327949, 1639745, 8198725]

約数ペア:

[(1, 8198725), (5, 1639745), (25, 327949), (31, 264475), (71, 115475), (149, 55025), (155, 52895), (355, 23095), (745, 11005), (775, 10579), (1775, 4619), (2201, 3725)]