78812660

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1\times {\mathrm{431}}^1$

素因数の和:704

約数の個数: 48

約数和(自身を含む): 170698752

約数和(自身を除く): 91886092

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 223, 410, 431, 446, 820, 862, 892, 1115, 1724, 2155, 2230, 4310, 4460, 8620, 9143, 17671, 18286, 35342, 36572, 45715, 70684, 88355, 91430, 96113, 176710, 182860, 192226, 353420, 384452, 480565, 961130, 1922260, 3940633, 7881266, 15762532, 19703165, 39406330, 78812660]

約数ペア:

[(1, 78812660), (2, 39406330), (4, 19703165), (5, 15762532), (10, 7881266), (20, 3940633), (41, 1922260), (82, 961130), (164, 480565), (205, 384452), (223, 353420), (410, 192226), (431, 182860), (446, 176710), (820, 96113), (862, 91430), (892, 88355), (1115, 70684), (1724, 45715), (2155, 36572), (2230, 35342), (4310, 18286), (4460, 17671), (8620, 9143)]