25742505

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{643}}^1$

素因数の和:825

約数の個数: 32

約数和(自身を含む): 43956864

約数和(自身を除く): 18214359

約数列:

[1, 3, 5, 15, 17, 51, 85, 157, 255, 471, 643, 785, 1929, 2355, 2669, 3215, 8007, 9645, 10931, 13345, 32793, 40035, 54655, 100951, 163965, 302853, 504755, 1514265, 1716167, 5148501, 8580835, 25742505]

約数ペア:

[(1, 25742505), (3, 8580835), (5, 5148501), (15, 1716167), (17, 1514265), (51, 504755), (85, 302853), (157, 163965), (255, 100951), (471, 54655), (643, 40035), (785, 32793), (1929, 13345), (2355, 10931), (2669, 9645), (3215, 8007)]