18785140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{829}}^1$

素因数の和:952

約数の個数: 48

約数和(自身を含む): 43505280

約数和(自身を除く): 24720140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 103, 110, 206, 220, 412, 515, 829, 1030, 1133, 1658, 2060, 2266, 3316, 4145, 4532, 5665, 8290, 9119, 11330, 16580, 18238, 22660, 36476, 45595, 85387, 91190, 170774, 182380, 341548, 426935, 853870, 939257, 1707740, 1878514, 3757028, 4696285, 9392570, 18785140]

約数ペア:

[(1, 18785140), (2, 9392570), (4, 4696285), (5, 3757028), (10, 1878514), (11, 1707740), (20, 939257), (22, 853870), (44, 426935), (55, 341548), (103, 182380), (110, 170774), (206, 91190), (220, 85387), (412, 45595), (515, 36476), (829, 22660), (1030, 18238), (1133, 16580), (1658, 11330), (2060, 9119), (2266, 8290), (3316, 5665), (4145, 4532)]