213220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1523}}^1$

素因数の和:1539

約数の個数: 24

約数和(自身を含む): 512064

約数和(自身を除く): 298844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1523, 3046, 6092, 7615, 10661, 15230, 21322, 30460, 42644, 53305, 106610, 213220]

約数ペア:

[(1, 213220), (2, 106610), (4, 53305), (5, 42644), (7, 30460), (10, 21322), (14, 15230), (20, 10661), (28, 7615), (35, 6092), (70, 3046), (140, 1523)]