257163670

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{18541}}^1$

素因数の和:18640

約数の個数: 32

約数和(自身を含む): 493958880

約数和(自身を除く): 236795210

約数列:

[1, 2, 5, 10, 19, 38, 73, 95, 146, 190, 365, 730, 1387, 2774, 6935, 13870, 18541, 37082, 92705, 185410, 352279, 704558, 1353493, 1761395, 2706986, 3522790, 6767465, 13534930, 25716367, 51432734, 128581835, 257163670]

約数ペア:

[(1, 257163670), (2, 128581835), (5, 51432734), (10, 25716367), (19, 13534930), (38, 6767465), (73, 3522790), (95, 2706986), (146, 1761395), (190, 1353493), (365, 704558), (730, 352279), (1387, 185410), (2774, 92705), (6935, 37082), (13870, 18541)]