19929680

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{6733}}^1$

素因数の和:6783

約数の個数: 40

約数和(自身を含む): 47595912

約数和(自身を除く): 27666232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 6733, 13466, 26932, 33665, 53864, 67330, 107728, 134660, 249121, 269320, 498242, 538640, 996484, 1245605, 1992968, 2491210, 3985936, 4982420, 9964840, 19929680]

約数ペア:

[(1, 19929680), (2, 9964840), (4, 4982420), (5, 3985936), (8, 2491210), (10, 1992968), (16, 1245605), (20, 996484), (37, 538640), (40, 498242), (74, 269320), (80, 249121), (148, 134660), (185, 107728), (296, 67330), (370, 53864), (592, 33665), (740, 26932), (1480, 13466), (2960, 6733)]