81740090

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{1531}}^1$

素因数の和:1838

約数の個数: 32

約数和(自身を含む): 155528640

約数和(自身を除く): 73788550

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 281, 562, 1405, 1531, 2810, 3062, 5339, 7655, 10678, 15310, 26695, 29089, 53390, 58178, 145445, 290890, 430211, 860422, 2151055, 4302110, 8174009, 16348018, 40870045, 81740090]

約数ペア:

[(1, 81740090), (2, 40870045), (5, 16348018), (10, 8174009), (19, 4302110), (38, 2151055), (95, 860422), (190, 430211), (281, 290890), (562, 145445), (1405, 58178), (1531, 53390), (2810, 29089), (3062, 26695), (5339, 15310), (7655, 10678)]