31538640

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{18773}}^1$

素因数の和:18796

約数の個数: 80

約数和(自身を含む): 111742848

約数和(自身を除く): 80204208

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 18773, 37546, 56319, 75092, 93865, 112638, 131411, 150184, 187730, 225276, 262822, 281595, 300368, 375460, 394233, 450552, 525644, 563190, 657055, 750920, 788466, 901104, 1051288, 1126380, 1314110, 1501840, 1576932, 1971165, 2102576, 2252760, 2628220, 3153864, 3942330, 4505520, 5256440, 6307728, 7884660, 10512880, 15769320, 31538640]

約数ペア:

[(1, 31538640), (2, 15769320), (3, 10512880), (4, 7884660), (5, 6307728), (6, 5256440), (7, 4505520), (8, 3942330), (10, 3153864), (12, 2628220), (14, 2252760), (15, 2102576), (16, 1971165), (20, 1576932), (21, 1501840), (24, 1314110), (28, 1126380), (30, 1051288), (35, 901104), (40, 788466), (42, 750920), (48, 657055), (56, 563190), (60, 525644), (70, 450552), (80, 394233), (84, 375460), (105, 300368), (112, 281595), (120, 262822), (140, 225276), (168, 187730), (210, 150184), (240, 131411), (280, 112638), (336, 93865), (420, 75092), (560, 56319), (840, 37546), (1680, 18773)]