18897320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36341}}^1$

素因数の和:36365

約数の個数: 32

約数和(自身を含む): 45790920

約数和(自身を除く): 26893600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 36341, 72682, 145364, 181705, 290728, 363410, 472433, 726820, 944866, 1453640, 1889732, 2362165, 3779464, 4724330, 9448660, 18897320]

約数ペア:

[(1, 18897320), (2, 9448660), (4, 4724330), (5, 3779464), (8, 2362165), (10, 1889732), (13, 1453640), (20, 944866), (26, 726820), (40, 472433), (52, 363410), (65, 290728), (104, 181705), (130, 145364), (260, 72682), (520, 36341)]