64538640

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{29879}}^1$

素因数の和:29901

約数の個数: 80

約数和(自身を含む): 222307200

約数和(自身を除く): 157768560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 29879, 59758, 89637, 119516, 149395, 179274, 239032, 268911, 298790, 358548, 448185, 478064, 537822, 597580, 717096, 806733, 896370, 1075644, 1195160, 1344555, 1434192, 1613466, 1792740, 2151288, 2390320, 2689110, 3226932, 3585480, 4033665, 4302576, 5378220, 6453864, 7170960, 8067330, 10756440, 12907728, 16134660, 21512880, 32269320, 64538640]

約数ペア:

[(1, 64538640), (2, 32269320), (3, 21512880), (4, 16134660), (5, 12907728), (6, 10756440), (8, 8067330), (9, 7170960), (10, 6453864), (12, 5378220), (15, 4302576), (16, 4033665), (18, 3585480), (20, 3226932), (24, 2689110), (27, 2390320), (30, 2151288), (36, 1792740), (40, 1613466), (45, 1434192), (48, 1344555), (54, 1195160), (60, 1075644), (72, 896370), (80, 806733), (90, 717096), (108, 597580), (120, 537822), (135, 478064), (144, 448185), (180, 358548), (216, 298790), (240, 268911), (270, 239032), (360, 179274), (432, 149395), (540, 119516), (720, 89637), (1080, 59758), (2160, 29879)]