19658360

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6221}}^1$

素因数の和:6311

約数の個数: 32

約数和(自身を含む): 44798400

約数和(自身を除く): 25140040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 6221, 12442, 24884, 31105, 49768, 62210, 124420, 248840, 491459, 982918, 1965836, 2457295, 3931672, 4914590, 9829180, 19658360]

約数ペア:

[(1, 19658360), (2, 9829180), (4, 4914590), (5, 3931672), (8, 2457295), (10, 1965836), (20, 982918), (40, 491459), (79, 248840), (158, 124420), (316, 62210), (395, 49768), (632, 31105), (790, 24884), (1580, 12442), (3160, 6221)]