18059320

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{887}}^1$

素因数の和:1407

約数の個数: 32

約数和(自身を含む): 40759200

約数和(自身を除く): 22699880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 887, 1018, 1774, 2036, 2545, 3548, 4072, 4435, 5090, 7096, 8870, 10180, 17740, 20360, 35480, 451483, 902966, 1805932, 2257415, 3611864, 4514830, 9029660, 18059320]

約数ペア:

[(1, 18059320), (2, 9029660), (4, 4514830), (5, 3611864), (8, 2257415), (10, 1805932), (20, 902966), (40, 451483), (509, 35480), (887, 20360), (1018, 17740), (1774, 10180), (2036, 8870), (2545, 7096), (3548, 5090), (4072, 4435)]