168352740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{21751}}^1$

素因数の和:21809

約数の個数: 72

約数和(自身を含む): 522570048

約数和(自身を除く): 354217308

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 21751, 43502, 65253, 87004, 108755, 130506, 195759, 217510, 261012, 326265, 391518, 435020, 652530, 783036, 935293, 978795, 1305060, 1870586, 1957590, 2805879, 3741172, 3915180, 4676465, 5611758, 8417637, 9352930, 11223516, 14029395, 16835274, 18705860, 28058790, 33670548, 42088185, 56117580, 84176370, 168352740]

約数ペア:

[(1, 168352740), (2, 84176370), (3, 56117580), (4, 42088185), (5, 33670548), (6, 28058790), (9, 18705860), (10, 16835274), (12, 14029395), (15, 11223516), (18, 9352930), (20, 8417637), (30, 5611758), (36, 4676465), (43, 3915180), (45, 3741172), (60, 2805879), (86, 1957590), (90, 1870586), (129, 1305060), (172, 978795), (180, 935293), (215, 783036), (258, 652530), (387, 435020), (430, 391518), (516, 326265), (645, 261012), (774, 217510), (860, 195759), (1290, 130506), (1548, 108755), (1935, 87004), (2580, 65253), (3870, 43502), (7740, 21751)]