81169380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10487}}^1$

素因数の和:10545

約数の個数: 72

約数和(自身を含む): 251963712

約数和(自身を除く): 170794332

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, 10487, 20974, 31461, 41948, 52435, 62922, 94383, 104870, 125844, 157305, 188766, 209740, 314610, 377532, 450941, 471915, 629220, 901882, 943830, 1352823, 1803764, 1887660, 2254705, 2705646, 4058469, 4509410, 5411292, 6764115, 8116938, 9018820, 13528230, 16233876, 20292345, 27056460, 40584690, 81169380]

約数ペア:

[(1, 81169380), (2, 40584690), (3, 27056460), (4, 20292345), (5, 16233876), (6, 13528230), (9, 9018820), (10, 8116938), (12, 6764115), (15, 5411292), (18, 4509410), (20, 4058469), (30, 2705646), (36, 2254705), (43, 1887660), (45, 1803764), (60, 1352823), (86, 943830), (90, 901882), (129, 629220), (172, 471915), (180, 450941), (215, 377532), (258, 314610), (387, 209740), (430, 188766), (516, 157305), (645, 125844), (774, 104870), (860, 94383), (1290, 62922), (1548, 52435), (1935, 41948), (2580, 31461), (3870, 20974), (7740, 10487)]