128207930

素因数分解:

$2^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{40961}}^1$

素因数の和:41281

約数の個数: 16

約数和(自身を含む): 231517224

約数和(自身を除く): 103309294

約数列:

[1, 2, 5, 10, 313, 626, 1565, 3130, 40961, 81922, 204805, 409610, 12820793, 25641586, 64103965, 128207930]

約数ペア:

[(1, 128207930), (2, 64103965), (5, 25641586), (10, 12820793), (313, 409610), (626, 204805), (1565, 81922), (3130, 40961)]