20750725

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{199}}^1$

素因数の和:349

約数の個数: 24

約数和(自身を含む): 26734400

約数和(自身を除く): 5983675

約数列:

[1, 5, 25, 43, 97, 199, 215, 485, 995, 1075, 2425, 4171, 4975, 8557, 19303, 20855, 42785, 96515, 104275, 213925, 482575, 830029, 4150145, 20750725]

約数ペア:

[(1, 20750725), (5, 4150145), (25, 830029), (43, 482575), (97, 213925), (199, 104275), (215, 96515), (485, 42785), (995, 20855), (1075, 19303), (2425, 8557), (4171, 4975)]