18407320

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3359}}^1$

素因数の和:3507

約数の個数: 32

約数和(自身を含む): 41731200

約数和(自身を除く): 23323880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 3359, 5480, 6718, 13436, 16795, 26872, 33590, 67180, 134360, 460183, 920366, 1840732, 2300915, 3681464, 4601830, 9203660, 18407320]

約数ペア:

[(1, 18407320), (2, 9203660), (4, 4601830), (5, 3681464), (8, 2300915), (10, 1840732), (20, 920366), (40, 460183), (137, 134360), (274, 67180), (548, 33590), (685, 26872), (1096, 16795), (1370, 13436), (2740, 6718), (3359, 5480)]