80719910

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{457}}^1\times {\mathrm{1039}}^1$

素因数の和:1520

約数の個数: 32

約数和(自身を含む): 154327680

約数和(自身を除く): 73607770

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 457, 914, 1039, 2078, 2285, 4570, 5195, 7769, 10390, 15538, 17663, 35326, 38845, 77690, 88315, 176630, 474823, 949646, 2374115, 4748230, 8071991, 16143982, 40359955, 80719910]

約数ペア:

[(1, 80719910), (2, 40359955), (5, 16143982), (10, 8071991), (17, 4748230), (34, 2374115), (85, 949646), (170, 474823), (457, 176630), (914, 88315), (1039, 77690), (2078, 38845), (2285, 35326), (4570, 17663), (5195, 15538), (7769, 10390)]