87772840

素因数分解:

$2^3\times 5^1\times {\mathrm{2194321}}^1$

素因数の和:2194332

約数の個数: 16

約数和(自身を含む): 197488980

約数和(自身を除く): 109716140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2194321, 4388642, 8777284, 10971605, 17554568, 21943210, 43886420, 87772840]

約数ペア:

[(1, 87772840), (2, 43886420), (4, 21943210), (5, 17554568), (8, 10971605), (10, 8777284), (20, 4388642), (40, 2194321)]