18521440

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{719}}^1$

素因数の和:764

約数の個数: 96

約数和(自身を含む): 52254720

約数和(自身を除く): 33733280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 160, 161, 184, 224, 230, 280, 322, 368, 460, 560, 644, 719, 736, 805, 920, 1120, 1288, 1438, 1610, 1840, 2576, 2876, 3220, 3595, 3680, 5033, 5152, 5752, 6440, 7190, 10066, 11504, 12880, 14380, 16537, 20132, 23008, 25165, 25760, 28760, 33074, 40264, 50330, 57520, 66148, 80528, 82685, 100660, 115040, 115759, 132296, 161056, 165370, 201320, 231518, 264592, 330740, 402640, 463036, 529184, 578795, 661480, 805280, 926072, 1157590, 1322960, 1852144, 2315180, 2645920, 3704288, 4630360, 9260720, 18521440]

約数ペア:

[(1, 18521440), (2, 9260720), (4, 4630360), (5, 3704288), (7, 2645920), (8, 2315180), (10, 1852144), (14, 1322960), (16, 1157590), (20, 926072), (23, 805280), (28, 661480), (32, 578795), (35, 529184), (40, 463036), (46, 402640), (56, 330740), (70, 264592), (80, 231518), (92, 201320), (112, 165370), (115, 161056), (140, 132296), (160, 115759), (161, 115040), (184, 100660), (224, 82685), (230, 80528), (280, 66148), (322, 57520), (368, 50330), (460, 40264), (560, 33074), (644, 28760), (719, 25760), (736, 25165), (805, 23008), (920, 20132), (1120, 16537), (1288, 14380), (1438, 12880), (1610, 11504), (1840, 10066), (2576, 7190), (2876, 6440), (3220, 5752), (3595, 5152), (3680, 5033)]