90819180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21937}}^1$

素因数の和:21975

約数の個数: 72

約数和(自身を含む): 287475552

約数和(自身を除く): 196656372

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 21937, 43874, 65811, 87748, 109685, 131622, 197433, 219370, 263244, 329055, 394866, 438740, 504551, 658110, 789732, 987165, 1009102, 1316220, 1513653, 1974330, 2018204, 2522755, 3027306, 3948660, 4540959, 5045510, 6054612, 7568265, 9081918, 10091020, 15136530, 18163836, 22704795, 30273060, 45409590, 90819180]

約数ペア:

[(1, 90819180), (2, 45409590), (3, 30273060), (4, 22704795), (5, 18163836), (6, 15136530), (9, 10091020), (10, 9081918), (12, 7568265), (15, 6054612), (18, 5045510), (20, 4540959), (23, 3948660), (30, 3027306), (36, 2522755), (45, 2018204), (46, 1974330), (60, 1513653), (69, 1316220), (90, 1009102), (92, 987165), (115, 789732), (138, 658110), (180, 504551), (207, 438740), (230, 394866), (276, 329055), (345, 263244), (414, 219370), (460, 197433), (690, 131622), (828, 109685), (1035, 87748), (1380, 65811), (2070, 43874), (4140, 21937)]