28364735

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{401}}^1$

素因数の和:503

約数の個数: 32

約数和(自身を含む): 40753152

約数和(自身を除く): 12388417

約数列:

[1, 5, 7, 35, 43, 47, 215, 235, 301, 329, 401, 1505, 1645, 2005, 2021, 2807, 10105, 14035, 14147, 17243, 18847, 70735, 86215, 94235, 120701, 131929, 603505, 659645, 810421, 4052105, 5672947, 28364735]

約数ペア:

[(1, 28364735), (5, 5672947), (7, 4052105), (35, 810421), (43, 659645), (47, 603505), (215, 131929), (235, 120701), (301, 94235), (329, 86215), (401, 70735), (1505, 18847), (1645, 17243), (2005, 14147), (2021, 14035), (2807, 10105)]