90963280

素因数分解:

$2^4\times 5^1\times {\mathrm{971}}^1\times {\mathrm{1171}}^1$

素因数の和:2155

約数の個数: 40

約数和(自身を含む): 211888224

約数和(自身を除く): 120924944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 971, 1171, 1942, 2342, 3884, 4684, 4855, 5855, 7768, 9368, 9710, 11710, 15536, 18736, 19420, 23420, 38840, 46840, 77680, 93680, 1137041, 2274082, 4548164, 5685205, 9096328, 11370410, 18192656, 22740820, 45481640, 90963280]

約数ペア:

[(1, 90963280), (2, 45481640), (4, 22740820), (5, 18192656), (8, 11370410), (10, 9096328), (16, 5685205), (20, 4548164), (40, 2274082), (80, 1137041), (971, 93680), (1171, 77680), (1942, 46840), (2342, 38840), (3884, 23420), (4684, 19420), (4855, 18736), (5855, 15536), (7768, 11710), (9368, 9710)]