81513180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{64693}}^1$

素因数の和:64715

約数の個数: 72

約数和(自身を含む): 282583392

約数和(自身を除く): 201070212

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 64693, 129386, 194079, 258772, 323465, 388158, 452851, 582237, 646930, 776316, 905702, 970395, 1164474, 1293860, 1358553, 1811404, 1940790, 2264255, 2328948, 2717106, 2911185, 3881580, 4075659, 4528510, 5434212, 5822370, 6792765, 8151318, 9057020, 11644740, 13585530, 16302636, 20378295, 27171060, 40756590, 81513180]

約数ペア:

[(1, 81513180), (2, 40756590), (3, 27171060), (4, 20378295), (5, 16302636), (6, 13585530), (7, 11644740), (9, 9057020), (10, 8151318), (12, 6792765), (14, 5822370), (15, 5434212), (18, 4528510), (20, 4075659), (21, 3881580), (28, 2911185), (30, 2717106), (35, 2328948), (36, 2264255), (42, 1940790), (45, 1811404), (60, 1358553), (63, 1293860), (70, 1164474), (84, 970395), (90, 905702), (105, 776316), (126, 646930), (140, 582237), (180, 452851), (210, 388158), (252, 323465), (315, 258772), (420, 194079), (630, 129386), (1260, 64693)]