139444280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{85027}}^1$

素因数の和:85079

約数の個数: 32

約数和(自身を含む): 321405840

約数和(自身を除く): 181961560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 85027, 170054, 340108, 425135, 680216, 850270, 1700540, 3401080, 3486107, 6972214, 13944428, 17430535, 27888856, 34861070, 69722140, 139444280]

約数ペア:

[(1, 139444280), (2, 69722140), (4, 34861070), (5, 27888856), (8, 17430535), (10, 13944428), (20, 6972214), (40, 3486107), (41, 3401080), (82, 1700540), (164, 850270), (205, 680216), (328, 425135), (410, 340108), (820, 170054), (1640, 85027)]