20298280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{12377}}^1$

素因数の和:12429

約数の個数: 32

約数和(自身を含む): 46788840

約数和(自身を除く): 26490560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 12377, 24754, 49508, 61885, 99016, 123770, 247540, 495080, 507457, 1014914, 2029828, 2537285, 4059656, 5074570, 10149140, 20298280]

約数ペア:

[(1, 20298280), (2, 10149140), (4, 5074570), (5, 4059656), (8, 2537285), (10, 2029828), (20, 1014914), (40, 507457), (41, 495080), (82, 247540), (164, 123770), (205, 99016), (328, 61885), (410, 49508), (820, 24754), (1640, 12377)]