80719240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{288283}}^1$

素因数の和:288301

約数の個数: 32

約数和(自身を含む): 207564480

約数和(自身を除く): 126845240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 288283, 576566, 1153132, 1441415, 2017981, 2306264, 2882830, 4035962, 5765660, 8071924, 10089905, 11531320, 16143848, 20179810, 40359620, 80719240]

約数ペア:

[(1, 80719240), (2, 40359620), (4, 20179810), (5, 16143848), (7, 11531320), (8, 10089905), (10, 8071924), (14, 5765660), (20, 4035962), (28, 2882830), (35, 2306264), (40, 2017981), (56, 1441415), (70, 1153132), (140, 576566), (280, 288283)]