18713560

素因数分解:

$2^3\times 5^1\times {\mathrm{587}}^1\times {\mathrm{797}}^1$

素因数の和:1395

約数の個数: 32

約数和(自身を含む): 42230160

約数和(自身を除く): 23516600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 587, 797, 1174, 1594, 2348, 2935, 3188, 3985, 4696, 5870, 6376, 7970, 11740, 15940, 23480, 31880, 467839, 935678, 1871356, 2339195, 3742712, 4678390, 9356780, 18713560]

約数ペア:

[(1, 18713560), (2, 9356780), (4, 4678390), (5, 3742712), (8, 2339195), (10, 1871356), (20, 935678), (40, 467839), (587, 31880), (797, 23480), (1174, 15940), (1594, 11740), (2348, 7970), (2935, 6376), (3188, 5870), (3985, 4696)]