90661640

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{22441}}^1$

素因数の和:22553

約数の個数: 32

約数和(自身を含む): 206017560

約数和(自身を除く): 115355920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 22441, 44882, 89764, 112205, 179528, 224410, 448820, 897640, 2266541, 4533082, 9066164, 11332705, 18132328, 22665410, 45330820, 90661640]

約数ペア:

[(1, 90661640), (2, 45330820), (4, 22665410), (5, 18132328), (8, 11332705), (10, 9066164), (20, 4533082), (40, 2266541), (101, 897640), (202, 448820), (404, 224410), (505, 179528), (808, 112205), (1010, 89764), (2020, 44882), (4040, 22441)]