399719390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{293}}^1\times {\mathrm{19489}}^1$

素因数の和:19796

約数の個数: 32

約数和(自身を含む): 825128640

約数和(自身を除く): 425409250

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 293, 586, 1465, 2051, 2930, 4102, 10255, 19489, 20510, 38978, 97445, 136423, 194890, 272846, 682115, 1364230, 5710277, 11420554, 28551385, 39971939, 57102770, 79943878, 199859695, 399719390]

約数ペア:

[(1, 399719390), (2, 199859695), (5, 79943878), (7, 57102770), (10, 39971939), (14, 28551385), (35, 11420554), (70, 5710277), (293, 1364230), (586, 682115), (1465, 272846), (2051, 194890), (2930, 136423), (4102, 97445), (10255, 38978), (19489, 20510)]