13220840

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{8933}}^1$

素因数の和:8981

約数の個数: 32

約数和(自身を含む): 30554280

約数和(自身を除く): 17333440

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 8933, 17866, 35732, 44665, 71464, 89330, 178660, 330521, 357320, 661042, 1322084, 1652605, 2644168, 3305210, 6610420, 13220840]

約数ペア:

[(1, 13220840), (2, 6610420), (4, 3305210), (5, 2644168), (8, 1652605), (10, 1322084), (20, 661042), (37, 357320), (40, 330521), (74, 178660), (148, 89330), (185, 71464), (296, 44665), (370, 35732), (740, 17866), (1480, 8933)]