80851120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{409}}^1$

素因数の和:782

約数の個数: 80

約数和(自身を含む): 215968320

約数和(自身を除く): 135117200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 353, 409, 560, 706, 818, 1412, 1636, 1765, 2045, 2471, 2824, 2863, 3272, 3530, 4090, 4942, 5648, 5726, 6544, 7060, 8180, 9884, 11452, 12355, 14120, 14315, 16360, 19768, 22904, 24710, 28240, 28630, 32720, 39536, 45808, 49420, 57260, 98840, 114520, 144377, 197680, 229040, 288754, 577508, 721885, 1010639, 1155016, 1443770, 2021278, 2310032, 2887540, 4042556, 5053195, 5775080, 8085112, 10106390, 11550160, 16170224, 20212780, 40425560, 80851120]

約数ペア:

[(1, 80851120), (2, 40425560), (4, 20212780), (5, 16170224), (7, 11550160), (8, 10106390), (10, 8085112), (14, 5775080), (16, 5053195), (20, 4042556), (28, 2887540), (35, 2310032), (40, 2021278), (56, 1443770), (70, 1155016), (80, 1010639), (112, 721885), (140, 577508), (280, 288754), (353, 229040), (409, 197680), (560, 144377), (706, 114520), (818, 98840), (1412, 57260), (1636, 49420), (1765, 45808), (2045, 39536), (2471, 32720), (2824, 28630), (2863, 28240), (3272, 24710), (3530, 22904), (4090, 19768), (4942, 16360), (5648, 14315), (5726, 14120), (6544, 12355), (7060, 11452), (8180, 9884)]