81695520

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{18911}}^1$

素因数の和:18935

約数の個数: 96

約数和(自身を含む): 285949440

約数和(自身を除く): 204253920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 216, 240, 270, 288, 360, 432, 480, 540, 720, 864, 1080, 1440, 2160, 4320, 18911, 37822, 56733, 75644, 94555, 113466, 151288, 170199, 189110, 226932, 283665, 302576, 340398, 378220, 453864, 510597, 567330, 605152, 680796, 756440, 850995, 907728, 1021194, 1134660, 1361592, 1512880, 1701990, 1815456, 2042388, 2269320, 2552985, 2723184, 3025760, 3403980, 4084776, 4538640, 5105970, 5446368, 6807960, 8169552, 9077280, 10211940, 13615920, 16339104, 20423880, 27231840, 40847760, 81695520]

約数ペア:

[(1, 81695520), (2, 40847760), (3, 27231840), (4, 20423880), (5, 16339104), (6, 13615920), (8, 10211940), (9, 9077280), (10, 8169552), (12, 6807960), (15, 5446368), (16, 5105970), (18, 4538640), (20, 4084776), (24, 3403980), (27, 3025760), (30, 2723184), (32, 2552985), (36, 2269320), (40, 2042388), (45, 1815456), (48, 1701990), (54, 1512880), (60, 1361592), (72, 1134660), (80, 1021194), (90, 907728), (96, 850995), (108, 756440), (120, 680796), (135, 605152), (144, 567330), (160, 510597), (180, 453864), (216, 378220), (240, 340398), (270, 302576), (288, 283665), (360, 226932), (432, 189110), (480, 170199), (540, 151288), (720, 113466), (864, 94555), (1080, 75644), (1440, 56733), (2160, 37822), (4320, 18911)]