18455320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{35491}}^1$

素因数の和:35515

約数の個数: 32

約数和(自身を含む): 44719920

約数和(自身を除く): 26264600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 35491, 70982, 141964, 177455, 283928, 354910, 461383, 709820, 922766, 1419640, 1845532, 2306915, 3691064, 4613830, 9227660, 18455320]

約数ペア:

[(1, 18455320), (2, 9227660), (4, 4613830), (5, 3691064), (8, 2306915), (10, 1845532), (13, 1419640), (20, 922766), (26, 709820), (40, 461383), (52, 354910), (65, 283928), (104, 177455), (130, 141964), (260, 70982), (520, 35491)]