204980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{277}}^1$

素因数の和:323

約数の個数: 24

約数和(自身を含む): 443688

約数和(自身を除く): 238708

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 277, 370, 554, 740, 1108, 1385, 2770, 5540, 10249, 20498, 40996, 51245, 102490, 204980]

約数ペア:

[(1, 204980), (2, 102490), (4, 51245), (5, 40996), (10, 20498), (20, 10249), (37, 5540), (74, 2770), (148, 1385), (185, 1108), (277, 740), (370, 554)]