81289350

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{4201}}^1$

素因数の和:4262

約数の個数: 72

約数和(自身を含む): 223529592

約数和(自身を除く): 142240242

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 43, 45, 50, 75, 86, 90, 129, 150, 215, 225, 258, 387, 430, 450, 645, 774, 1075, 1290, 1935, 2150, 3225, 3870, 4201, 6450, 8402, 9675, 12603, 19350, 21005, 25206, 37809, 42010, 63015, 75618, 105025, 126030, 180643, 189045, 210050, 315075, 361286, 378090, 541929, 630150, 903215, 945225, 1083858, 1625787, 1806430, 1890450, 2709645, 3251574, 4516075, 5419290, 8128935, 9032150, 13548225, 16257870, 27096450, 40644675, 81289350]

約数ペア:

[(1, 81289350), (2, 40644675), (3, 27096450), (5, 16257870), (6, 13548225), (9, 9032150), (10, 8128935), (15, 5419290), (18, 4516075), (25, 3251574), (30, 2709645), (43, 1890450), (45, 1806430), (50, 1625787), (75, 1083858), (86, 945225), (90, 903215), (129, 630150), (150, 541929), (215, 378090), (225, 361286), (258, 315075), (387, 210050), (430, 189045), (450, 180643), (645, 126030), (774, 105025), (1075, 75618), (1290, 63015), (1935, 42010), (2150, 37809), (3225, 25206), (3870, 21005), (4201, 19350), (6450, 12603), (8402, 9675)]