199970180

素因数分解:

$2^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{27851}}^1$

素因数の和:28219

約数の個数: 24

約数和(自身を含む): 421122240

約数和(自身を除く): 221152060

約数列:

[1, 2, 4, 5, 10, 20, 359, 718, 1436, 1795, 3590, 7180, 27851, 55702, 111404, 139255, 278510, 557020, 9998509, 19997018, 39994036, 49992545, 99985090, 199970180]

約数ペア:

[(1, 199970180), (2, 99985090), (4, 49992545), (5, 39994036), (10, 19997018), (20, 9998509), (359, 557020), (718, 278510), (1436, 139255), (1795, 111404), (3590, 55702), (7180, 27851)]