25354040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{10391}}^1$

素因数の和:10463

約数の個数: 32

約数和(自身を含む): 57987360

約数和(自身を除く): 32633320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 10391, 20782, 41564, 51955, 83128, 103910, 207820, 415640, 633851, 1267702, 2535404, 3169255, 5070808, 6338510, 12677020, 25354040]

約数ペア:

[(1, 25354040), (2, 12677020), (4, 6338510), (5, 5070808), (8, 3169255), (10, 2535404), (20, 1267702), (40, 633851), (61, 415640), (122, 207820), (244, 103910), (305, 83128), (488, 51955), (610, 41564), (1220, 20782), (2440, 10391)]