1390147180

素因数分解:

$2^2\times 5^1\times {\mathrm{5179}}^1\times {\mathrm{13421}}^1$

素因数の和:18609

約数の個数: 24

約数和(自身を含む): 2920090320

約数和(自身を除く): 1529943140

約数列:

[1, 2, 4, 5, 10, 20, 5179, 10358, 13421, 20716, 25895, 26842, 51790, 53684, 67105, 103580, 134210, 268420, 69507359, 139014718, 278029436, 347536795, 695073590, 1390147180]

約数ペア:

[(1, 1390147180), (2, 695073590), (4, 347536795), (5, 278029436), (10, 139014718), (20, 69507359), (5179, 268420), (10358, 134210), (13421, 103580), (20716, 67105), (25895, 53684), (26842, 51790)]