306911240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{187141}}^1$

素因数の和:187193

約数の個数: 32

約数和(自身を含む): 707396760

約数和(自身を除く): 400485520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 187141, 374282, 748564, 935705, 1497128, 1871410, 3742820, 7485640, 7672781, 15345562, 30691124, 38363905, 61382248, 76727810, 153455620, 306911240]

約数ペア:

[(1, 306911240), (2, 153455620), (4, 76727810), (5, 61382248), (8, 38363905), (10, 30691124), (20, 15345562), (40, 7672781), (41, 7485640), (82, 3742820), (164, 1871410), (205, 1497128), (328, 935705), (410, 748564), (820, 374282), (1640, 187141)]