416720

素因数分解:

$2^4\times 5^1\times {\mathrm{5209}}^1$

素因数の和:5222

約数の個数: 20

約数和(自身を含む): 969060

約数和(自身を除く): 552340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5209, 10418, 20836, 26045, 41672, 52090, 83344, 104180, 208360, 416720]

約数ペア:

[(1, 416720), (2, 208360), (4, 104180), (5, 83344), (8, 52090), (10, 41672), (16, 26045), (20, 20836), (40, 10418), (80, 5209)]