987253775

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{109391}}^1$

素因数の和:109439

約数の個数: 18

約数和(自身を含む): 1292028912

約数和(自身を除く): 304775137

約数列:

[1, 5, 19, 25, 95, 361, 475, 1805, 9025, 109391, 546955, 2078429, 2734775, 10392145, 39490151, 51960725, 197450755, 987253775]

約数ペア:

[(1, 987253775), (5, 197450755), (19, 51960725), (25, 39490151), (95, 10392145), (361, 2734775), (475, 2078429), (1805, 546955), (9025, 109391)]