18520760

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{5861}}^1$

素因数の和:5951

約数の個数: 32

約数和(自身を含む): 42206400

約数和(自身を除く): 23685640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 5861, 11722, 23444, 29305, 46888, 58610, 117220, 234440, 463019, 926038, 1852076, 2315095, 3704152, 4630190, 9260380, 18520760]

約数ペア:

[(1, 18520760), (2, 9260380), (4, 4630190), (5, 3704152), (8, 2315095), (10, 1852076), (20, 926038), (40, 463019), (79, 234440), (158, 117220), (316, 58610), (395, 46888), (632, 29305), (790, 23444), (1580, 11722), (3160, 5861)]