2169776720

素因数分解:

$2^4\times 5^1\times {\mathrm{27122209}}^1$

素因数の和:27122222

約数の個数: 20

約数和(自身を含む): 5044731060

約数和(自身を除く): 2874954340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 27122209, 54244418, 108488836, 135611045, 216977672, 271222090, 433955344, 542444180, 1084888360, 2169776720]

約数ペア:

[(1, 2169776720), (2, 1084888360), (4, 542444180), (5, 433955344), (8, 271222090), (10, 216977672), (16, 135611045), (20, 108488836), (40, 54244418), (80, 27122209)]