221248190

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{280061}}^1$

素因数の和:280147

約数の個数: 16

約数和(自身を含む): 403289280

約数和(自身を除く): 182041090

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 280061, 560122, 1400305, 2800610, 22124819, 44249638, 110624095, 221248190]

約数ペア:

[(1, 221248190), (2, 110624095), (5, 44249638), (10, 22124819), (79, 2800610), (158, 1400305), (395, 560122), (790, 280061)]