26520920

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{2521}}^1$

素因数の和:2795

約数の個数: 32

約数和(自身を含む): 59922720

約数和(自身を除く): 33401800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2521, 2630, 5042, 5260, 10084, 10520, 12605, 20168, 25210, 50420, 100840, 663023, 1326046, 2652092, 3315115, 5304184, 6630230, 13260460, 26520920]

約数ペア:

[(1, 26520920), (2, 13260460), (4, 6630230), (5, 5304184), (8, 3315115), (10, 2652092), (20, 1326046), (40, 663023), (263, 100840), (526, 50420), (1052, 25210), (1315, 20168), (2104, 12605), (2521, 10520), (2630, 10084), (5042, 5260)]