17943980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47221}}^1$

素因数の和:47249

約数の個数: 24

約数和(自身を含む): 39666480

約数和(自身を除く): 21722500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 47221, 94442, 188884, 236105, 472210, 897199, 944420, 1794398, 3588796, 4485995, 8971990, 17943980]

約数ペア:

[(1, 17943980), (2, 8971990), (4, 4485995), (5, 3588796), (10, 1794398), (19, 944420), (20, 897199), (38, 472210), (76, 236105), (95, 188884), (190, 94442), (380, 47221)]