19700580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{328343}}^1$

素因数の和:328355

約数の個数: 24

約数和(自身を含む): 55161792

約数和(自身を除く): 35461212

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 328343, 656686, 985029, 1313372, 1641715, 1970058, 3283430, 3940116, 4925145, 6566860, 9850290, 19700580]

約数ペア:

[(1, 19700580), (2, 9850290), (3, 6566860), (4, 4925145), (5, 3940116), (6, 3283430), (10, 1970058), (12, 1641715), (15, 1313372), (20, 985029), (30, 656686), (60, 328343)]