20479075

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{601}}^1$

素因数の和:687

約数の個数: 24

約数和(自身を含む): 26873280

約数和(自身を除く): 6394205

約数列:

[1, 5, 25, 29, 47, 145, 235, 601, 725, 1175, 1363, 3005, 6815, 15025, 17429, 28247, 34075, 87145, 141235, 435725, 706175, 819163, 4095815, 20479075]

約数ペア:

[(1, 20479075), (5, 4095815), (25, 819163), (29, 706175), (47, 435725), (145, 141235), (235, 87145), (601, 34075), (725, 28247), (1175, 17429), (1363, 15025), (3005, 6815)]