139960720

素因数分解:

$2^4\times 5^1\times {\mathrm{1749509}}^1$

素因数の和:1749522

約数の個数: 20

約数和(自身を含む): 325408860

約数和(自身を除く): 185448140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1749509, 3499018, 6998036, 8747545, 13996072, 17495090, 27992144, 34990180, 69980360, 139960720]

約数ペア:

[(1, 139960720), (2, 69980360), (4, 34990180), (5, 27992144), (8, 17495090), (10, 13996072), (16, 8747545), (20, 6998036), (40, 3499018), (80, 1749509)]