81455290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37537}}^1$

素因数の和:37582

約数の個数: 32

約数和(自身を含む): 172975104

約数和(自身を除く): 91519814

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 37537, 75074, 187685, 262759, 375370, 525518, 1163647, 1313795, 2327294, 2627590, 5818235, 8145529, 11636470, 16291058, 40727645, 81455290]

約数ペア:

[(1, 81455290), (2, 40727645), (5, 16291058), (7, 11636470), (10, 8145529), (14, 5818235), (31, 2627590), (35, 2327294), (62, 1313795), (70, 1163647), (155, 525518), (217, 375370), (310, 262759), (434, 187685), (1085, 75074), (2170, 37537)]