28205992

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{1321}}^1$

素因数の和:1501

約数の個数: 32

約数和(自身を含む): 56396520

約数和(自身を除く): 28190528

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 157, 314, 628, 1256, 1321, 2642, 2669, 5284, 5338, 10568, 10676, 21352, 22457, 44914, 89828, 179656, 207397, 414794, 829588, 1659176, 3525749, 7051498, 14102996, 28205992]

約数ペア:

[(1, 28205992), (2, 14102996), (4, 7051498), (8, 3525749), (17, 1659176), (34, 829588), (68, 414794), (136, 207397), (157, 179656), (314, 89828), (628, 44914), (1256, 22457), (1321, 21352), (2642, 10676), (2669, 10568), (5284, 5338)]