28332680

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{5407}}^1$

素因数の和:5549

約数の個数: 32

約数和(自身を含む): 64247040

約数和(自身を除く): 35914360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 5407, 10814, 21628, 27035, 43256, 54070, 108140, 216280, 708317, 1416634, 2833268, 3541585, 5666536, 7083170, 14166340, 28332680]

約数ペア:

[(1, 28332680), (2, 14166340), (4, 7083170), (5, 5666536), (8, 3541585), (10, 2833268), (20, 1416634), (40, 708317), (131, 216280), (262, 108140), (524, 54070), (655, 43256), (1048, 27035), (1310, 21628), (2620, 10814), (5240, 5407)]