91045840

素因数分解:

$2^4\times 5^1\times {\mathrm{647}}^1\times {\mathrm{1759}}^1$

素因数の和:2419

約数の個数: 40

約数和(自身を含む): 212129280

約数和(自身を除く): 121083440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 647, 1294, 1759, 2588, 3235, 3518, 5176, 6470, 7036, 8795, 10352, 12940, 14072, 17590, 25880, 28144, 35180, 51760, 70360, 140720, 1138073, 2276146, 4552292, 5690365, 9104584, 11380730, 18209168, 22761460, 45522920, 91045840]

約数ペア:

[(1, 91045840), (2, 45522920), (4, 22761460), (5, 18209168), (8, 11380730), (10, 9104584), (16, 5690365), (20, 4552292), (40, 2276146), (80, 1138073), (647, 140720), (1294, 70360), (1759, 51760), (2588, 35180), (3235, 28144), (3518, 25880), (5176, 17590), (6470, 14072), (7036, 12940), (8795, 10352)]