66484840

素因数分解:

$2^3\times 5^1\times {\mathrm{1662121}}^1$

素因数の和:1662132

約数の個数: 16

約数和(自身を含む): 149590980

約数和(自身を除く): 83106140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1662121, 3324242, 6648484, 8310605, 13296968, 16621210, 33242420, 66484840]

約数ペア:

[(1, 66484840), (2, 33242420), (4, 16621210), (5, 13296968), (8, 8310605), (10, 6648484), (20, 3324242), (40, 1662121)]