1666880

素因数分解:

$2^6\times 5^1\times {\mathrm{5209}}^1$

素因数の和:5226

約数の個数: 28

約数和(自身を含む): 3970020

約数和(自身を除く): 2303140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 5209, 10418, 20836, 26045, 41672, 52090, 83344, 104180, 166688, 208360, 333376, 416720, 833440, 1666880]

約数ペア:

[(1, 1666880), (2, 833440), (4, 416720), (5, 333376), (8, 208360), (10, 166688), (16, 104180), (20, 83344), (32, 52090), (40, 41672), (64, 26045), (80, 20836), (160, 10418), (320, 5209)]