81901510

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{2591}}^1$

素因数の和:2736

約数の個数: 32

約数和(自身を含む): 153964800

約数和(自身を除く): 72063290

約数列:

[1, 2, 5, 10, 29, 58, 109, 145, 218, 290, 545, 1090, 2591, 3161, 5182, 6322, 12955, 15805, 25910, 31610, 75139, 150278, 282419, 375695, 564838, 751390, 1412095, 2824190, 8190151, 16380302, 40950755, 81901510]

約数ペア:

[(1, 81901510), (2, 40950755), (5, 16380302), (10, 8190151), (29, 2824190), (58, 1412095), (109, 751390), (145, 564838), (218, 375695), (290, 282419), (545, 150278), (1090, 75139), (2591, 31610), (3161, 25910), (5182, 15805), (6322, 12955)]