179976820

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{22441}}^1$

素因数の和:22851

約数の個数: 24

約数和(自身を含む): 378910728

約数和(自身を除く): 198933908

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 4010, 8020, 22441, 44882, 89764, 112205, 224410, 448820, 8998841, 17997682, 35995364, 44994205, 89988410, 179976820]

約数ペア:

[(1, 179976820), (2, 89988410), (4, 44994205), (5, 35995364), (10, 17997682), (20, 8998841), (401, 448820), (802, 224410), (1604, 112205), (2005, 89764), (4010, 44882), (8020, 22441)]