388971760

素因数分解:

$2^4\times 5^1\times {\mathrm{941}}^1\times {\mathrm{5167}}^1$

素因数の和:6121

約数の個数: 40

約数和(自身を含む): 905495616

約数和(自身を除く): 516523856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 941, 1882, 3764, 4705, 5167, 7528, 9410, 10334, 15056, 18820, 20668, 25835, 37640, 41336, 51670, 75280, 82672, 103340, 206680, 413360, 4862147, 9724294, 19448588, 24310735, 38897176, 48621470, 77794352, 97242940, 194485880, 388971760]

約数ペア:

[(1, 388971760), (2, 194485880), (4, 97242940), (5, 77794352), (8, 48621470), (10, 38897176), (16, 24310735), (20, 19448588), (40, 9724294), (80, 4862147), (941, 413360), (1882, 206680), (3764, 103340), (4705, 82672), (5167, 75280), (7528, 51670), (9410, 41336), (10334, 37640), (15056, 25835), (18820, 20668)]