12981680

素因数分解:

$2^4\times 5^1\times {\mathrm{263}}^1\times {\mathrm{617}}^1$

素因数の和:893

約数の個数: 40

約数和(自身を含む): 30346272

約数和(自身を除く): 17364592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263, 526, 617, 1052, 1234, 1315, 2104, 2468, 2630, 3085, 4208, 4936, 5260, 6170, 9872, 10520, 12340, 21040, 24680, 49360, 162271, 324542, 649084, 811355, 1298168, 1622710, 2596336, 3245420, 6490840, 12981680]

約数ペア:

[(1, 12981680), (2, 6490840), (4, 3245420), (5, 2596336), (8, 1622710), (10, 1298168), (16, 811355), (20, 649084), (40, 324542), (80, 162271), (263, 49360), (526, 24680), (617, 21040), (1052, 12340), (1234, 10520), (1315, 9872), (2104, 6170), (2468, 5260), (2630, 4936), (3085, 4208)]