843980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2221}}^1$

素因数の和:2249

約数の個数: 24

約数和(自身を含む): 1866480

約数和(自身を除く): 1022500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 2221, 4442, 8884, 11105, 22210, 42199, 44420, 84398, 168796, 210995, 421990, 843980]

約数ペア:

[(1, 843980), (2, 421990), (4, 210995), (5, 168796), (10, 84398), (19, 44420), (20, 42199), (38, 22210), (76, 11105), (95, 8884), (190, 4442), (380, 2221)]