27704020

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{2161}}^1$

素因数の和:2811

約数の個数: 24

約数和(自身を含む): 58296168

約数和(自身を除く): 30592148

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2161, 2564, 3205, 4322, 6410, 8644, 10805, 12820, 21610, 43220, 1385201, 2770402, 5540804, 6926005, 13852010, 27704020]

約数ペア:

[(1, 27704020), (2, 13852010), (4, 6926005), (5, 5540804), (10, 2770402), (20, 1385201), (641, 43220), (1282, 21610), (2161, 12820), (2564, 10805), (3205, 8644), (4322, 6410)]