19450520

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4721}}^1$

素因数の和:4835

約数の個数: 32

約数和(自身を含む): 44197920

約数和(自身を除く): 24747400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 4721, 9442, 18884, 23605, 37768, 47210, 94420, 188840, 486263, 972526, 1945052, 2431315, 3890104, 4862630, 9725260, 19450520]

約数ペア:

[(1, 19450520), (2, 9725260), (4, 4862630), (5, 3890104), (8, 2431315), (10, 1945052), (20, 972526), (40, 486263), (103, 188840), (206, 94420), (412, 47210), (515, 37768), (824, 23605), (1030, 18884), (2060, 9442), (4120, 4721)]