164476880

素因数分解:

$2^4\times 5^1\times {\mathrm{2055961}}^1$

素因数の和:2055974

約数の個数: 20

約数和(自身を含む): 382408932

約数和(自身を除く): 217932052

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2055961, 4111922, 8223844, 10279805, 16447688, 20559610, 32895376, 41119220, 82238440, 164476880]

約数ペア:

[(1, 164476880), (2, 82238440), (4, 41119220), (5, 32895376), (8, 20559610), (10, 16447688), (16, 10279805), (20, 8223844), (40, 4111922), (80, 2055961)]