1231616720

素因数分解:

$2^4\times 5^1\times {\mathrm{15395209}}^1$

素因数の和:15395222

約数の個数: 20

約数和(自身を含む): 2863509060

約数和(自身を除く): 1631892340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 15395209, 30790418, 61580836, 76976045, 123161672, 153952090, 246323344, 307904180, 615808360, 1231616720]

約数ペア:

[(1, 1231616720), (2, 615808360), (4, 307904180), (5, 246323344), (8, 153952090), (10, 123161672), (16, 76976045), (20, 61580836), (40, 30790418), (80, 15395209)]