61880020

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{22259}}^1$

素因数の和:22407

約数の個数: 24

約数和(自身を含む): 130888800

約数和(自身を除く): 69008780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 22259, 44518, 89036, 111295, 222590, 445180, 3094001, 6188002, 12376004, 15470005, 30940010, 61880020]

約数ペア:

[(1, 61880020), (2, 30940010), (4, 15470005), (5, 12376004), (10, 6188002), (20, 3094001), (139, 445180), (278, 222590), (556, 111295), (695, 89036), (1390, 44518), (2780, 22259)]