19667020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{31721}}^1$

素因数の和:31761

約数の個数: 24

約数和(自身を含む): 42634368

約数和(自身を除く): 22967348

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 31721, 63442, 126884, 158605, 317210, 634420, 983351, 1966702, 3933404, 4916755, 9833510, 19667020]

約数ペア:

[(1, 19667020), (2, 9833510), (4, 4916755), (5, 3933404), (10, 1966702), (20, 983351), (31, 634420), (62, 317210), (124, 158605), (155, 126884), (310, 63442), (620, 31721)]