581380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{709}}^1$

素因数の和:759

約数の個数: 24

約数和(自身を含む): 1252440

約数和(自身を除く): 671060

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 709, 820, 1418, 2836, 3545, 7090, 14180, 29069, 58138, 116276, 145345, 290690, 581380]

約数ペア:

[(1, 581380), (2, 290690), (4, 145345), (5, 116276), (10, 58138), (20, 29069), (41, 14180), (82, 7090), (164, 3545), (205, 2836), (410, 1418), (709, 820)]