219033820

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{138629}}^1$

素因数の和:138717

約数の個数: 24

約数和(自身を含む): 465796800

約数和(自身を除く): 246762980

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 138629, 277258, 554516, 693145, 1386290, 2772580, 10951691, 21903382, 43806764, 54758455, 109516910, 219033820]

約数ペア:

[(1, 219033820), (2, 109516910), (4, 54758455), (5, 43806764), (10, 21903382), (20, 10951691), (79, 2772580), (158, 1386290), (316, 693145), (395, 554516), (790, 277258), (1580, 138629)]