19506980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{23789}}^1$

素因数の和:23839

約数の個数: 24

約数和(自身を含む): 41965560

約数和(自身を除く): 22458580

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 23789, 47578, 95156, 118945, 237890, 475780, 975349, 1950698, 3901396, 4876745, 9753490, 19506980]

約数ペア:

[(1, 19506980), (2, 9753490), (4, 4876745), (5, 3901396), (10, 1950698), (20, 975349), (41, 475780), (82, 237890), (164, 118945), (205, 95156), (410, 47578), (820, 23789)]