81792440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{120283}}^1$

素因数の和:120311

約数の個数: 32

約数和(自身を含む): 194860080

約数和(自身を除く): 113067640

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 120283, 240566, 481132, 601415, 962264, 1202830, 2044811, 2405660, 4089622, 4811320, 8179244, 10224055, 16358488, 20448110, 40896220, 81792440]

約数ペア:

[(1, 81792440), (2, 40896220), (4, 20448110), (5, 16358488), (8, 10224055), (10, 8179244), (17, 4811320), (20, 4089622), (34, 2405660), (40, 2044811), (68, 1202830), (85, 962264), (136, 601415), (170, 481132), (340, 240566), (680, 120283)]