11213920

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{643}}^1$

素因数の和:767

約数の個数: 48

約数和(自身を含む): 26777520

約数和(自身を除く): 15563600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 643, 872, 1090, 1286, 1744, 2180, 2572, 3215, 3488, 4360, 5144, 6430, 8720, 10288, 12860, 17440, 20576, 25720, 51440, 70087, 102880, 140174, 280348, 350435, 560696, 700870, 1121392, 1401740, 2242784, 2803480, 5606960, 11213920]

約数ペア:

[(1, 11213920), (2, 5606960), (4, 2803480), (5, 2242784), (8, 1401740), (10, 1121392), (16, 700870), (20, 560696), (32, 350435), (40, 280348), (80, 140174), (109, 102880), (160, 70087), (218, 51440), (436, 25720), (545, 20576), (643, 17440), (872, 12860), (1090, 10288), (1286, 8720), (1744, 6430), (2180, 5144), (2572, 4360), (3215, 3488)]