640862402065

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{6619}}^1\times {\mathrm{272737}}^1$

素因数の和:279432

約数の個数: 16

約数和(自身を含む): 779987041920

約数和(自身を除く): 139124639855

約数列:

[1, 5, 71, 355, 6619, 33095, 272737, 469949, 1363685, 2349745, 19364327, 96821635, 1805246203, 9026231015, 128172480413, 640862402065]

約数ペア:

[(1, 640862402065), (5, 128172480413), (71, 9026231015), (355, 1805246203), (6619, 96821635), (33095, 19364327), (272737, 2349745), (469949, 1363685)]