20779610

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{3943}}^1$

素因数の和:3998

約数の個数: 32

約数和(自身を含む): 40891392

約数和(自身を除く): 20111782

約数列:

[1, 2, 5, 10, 17, 31, 34, 62, 85, 155, 170, 310, 527, 1054, 2635, 3943, 5270, 7886, 19715, 39430, 67031, 122233, 134062, 244466, 335155, 611165, 670310, 1222330, 2077961, 4155922, 10389805, 20779610]

約数ペア:

[(1, 20779610), (2, 10389805), (5, 4155922), (10, 2077961), (17, 1222330), (31, 670310), (34, 611165), (62, 335155), (85, 244466), (155, 134062), (170, 122233), (310, 67031), (527, 39430), (1054, 19715), (2635, 7886), (3943, 5270)]