20571661565

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1031}}^1\times {\mathrm{43853}}^1$

素因数の和:44909

約数の個数: 32

約数和(自身を含む): 30412924416

約数和(自身を除く): 9841262851

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 1031, 5155, 7217, 13403, 36085, 43853, 67015, 93821, 219265, 306971, 469105, 570089, 1534855, 2850445, 3990623, 19953115, 45212443, 226062215, 316487101, 587761759, 1582435505, 2938808795, 4114332313, 20571661565]

約数ペア:

[(1, 20571661565), (5, 4114332313), (7, 2938808795), (13, 1582435505), (35, 587761759), (65, 316487101), (91, 226062215), (455, 45212443), (1031, 19953115), (5155, 3990623), (7217, 2850445), (13403, 1534855), (36085, 570089), (43853, 469105), (67015, 306971), (93821, 219265)]