1640372990

素因数分解:

$2^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{907}}^1\times {\mathrm{2179}}^1$

素因数の和:3176

約数の個数: 32

約数和(自身を含む): 2992913280

約数和(自身を除く): 1352540290

約数列:

[1, 2, 5, 10, 83, 166, 415, 830, 907, 1814, 2179, 4358, 4535, 9070, 10895, 21790, 75281, 150562, 180857, 361714, 376405, 752810, 904285, 1808570, 1976353, 3952706, 9881765, 19763530, 164037299, 328074598, 820186495, 1640372990]

約数ペア:

[(1, 1640372990), (2, 820186495), (5, 328074598), (10, 164037299), (83, 19763530), (166, 9881765), (415, 3952706), (830, 1976353), (907, 1808570), (1814, 904285), (2179, 752810), (4358, 376405), (4535, 361714), (9070, 180857), (10895, 150562), (21790, 75281)]