12897700

素因数分解:

$2^2\times 5^2\times {\mathrm{101}}^1\times {\mathrm{1277}}^1$

素因数の和:1392

約数の個数: 36

約数和(自身を含む): 28287252

約数和(自身を除く): 15389552

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 101, 202, 404, 505, 1010, 1277, 2020, 2525, 2554, 5050, 5108, 6385, 10100, 12770, 25540, 31925, 63850, 127700, 128977, 257954, 515908, 644885, 1289770, 2579540, 3224425, 6448850, 12897700]

約数ペア:

[(1, 12897700), (2, 6448850), (4, 3224425), (5, 2579540), (10, 1289770), (20, 644885), (25, 515908), (50, 257954), (100, 128977), (101, 127700), (202, 63850), (404, 31925), (505, 25540), (1010, 12770), (1277, 10100), (2020, 6385), (2525, 5108), (2554, 5050)]