18316840

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{9743}}^1$

素因数の和:9801

約数の個数: 32

約数和(自身を含む): 42094080

約数和(自身を除く): 23777240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 9743, 19486, 38972, 48715, 77944, 97430, 194860, 389720, 457921, 915842, 1831684, 2289605, 3663368, 4579210, 9158420, 18316840]

約数ペア:

[(1, 18316840), (2, 9158420), (4, 4579210), (5, 3663368), (8, 2289605), (10, 1831684), (20, 915842), (40, 457921), (47, 389720), (94, 194860), (188, 97430), (235, 77944), (376, 48715), (470, 38972), (940, 19486), (1880, 9743)]