10989980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{28921}}^1$

素因数の和:28949

約数の個数: 24

約数和(自身を含む): 24294480

約数和(自身を除く): 13304500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 28921, 57842, 115684, 144605, 289210, 549499, 578420, 1098998, 2197996, 2747495, 5494990, 10989980]

約数ペア:

[(1, 10989980), (2, 5494990), (4, 2747495), (5, 2197996), (10, 1098998), (19, 578420), (20, 549499), (38, 289210), (76, 144605), (95, 115684), (190, 57842), (380, 28921)]