202109860

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{15619}}^1$

素因数の和:16275

約数の個数: 24

約数和(自身を含む): 425113920

約数和(自身を除く): 223004060

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 2588, 3235, 6470, 12940, 15619, 31238, 62476, 78095, 156190, 312380, 10105493, 20210986, 40421972, 50527465, 101054930, 202109860]

約数ペア:

[(1, 202109860), (2, 101054930), (4, 50527465), (5, 40421972), (10, 20210986), (20, 10105493), (647, 312380), (1294, 156190), (2588, 78095), (3235, 62476), (6470, 31238), (12940, 15619)]