19815140

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{9619}}^1$

素因数の和:9731

約数の個数: 24

約数和(自身を含む): 42020160

約数和(自身を除く): 22205020

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 9619, 19238, 38476, 48095, 96190, 192380, 990757, 1981514, 3963028, 4953785, 9907570, 19815140]

約数ペア:

[(1, 19815140), (2, 9907570), (4, 4953785), (5, 3963028), (10, 1981514), (20, 990757), (103, 192380), (206, 96190), (412, 48095), (515, 38476), (1030, 19238), (2060, 9619)]