78420220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{206369}}^1$

素因数の和:206397

約数の個数: 24

約数和(自身を含む): 173350800

約数和(自身を除く): 94930580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 206369, 412738, 825476, 1031845, 2063690, 3921011, 4127380, 7842022, 15684044, 19605055, 39210110, 78420220]

約数ペア:

[(1, 78420220), (2, 39210110), (4, 19605055), (5, 15684044), (10, 7842022), (19, 4127380), (20, 3921011), (38, 2063690), (76, 1031845), (95, 825476), (190, 412738), (380, 206369)]