1640691928

素因数分解:

$2^3\times {\mathrm{811}}^1\times {\mathrm{252881}}^1$

素因数の和:253698

約数の個数: 16

約数和(自身を含む): 3080102760

約数和(自身を除く): 1439410832

約数列:

[1, 2, 4, 8, 811, 1622, 3244, 6488, 252881, 505762, 1011524, 2023048, 205086491, 410172982, 820345964, 1640691928]

約数ペア:

[(1, 1640691928), (2, 820345964), (4, 410172982), (8, 205086491), (811, 2023048), (1622, 1011524), (3244, 505762), (6488, 252881)]