31788540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{25229}}^1$

素因数の和:25251

約数の個数: 72

約数和(自身を含む): 110204640

約数和(自身を除く): 78416100

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, 25229, 50458, 75687, 100916, 126145, 151374, 176603, 227061, 252290, 302748, 353206, 378435, 454122, 504580, 529809, 706412, 756870, 883015, 908244, 1059618, 1135305, 1513740, 1589427, 1766030, 2119236, 2270610, 2649045, 3178854, 3532060, 4541220, 5298090, 6357708, 7947135, 10596180, 15894270, 31788540]

約数ペア:

[(1, 31788540), (2, 15894270), (3, 10596180), (4, 7947135), (5, 6357708), (6, 5298090), (7, 4541220), (9, 3532060), (10, 3178854), (12, 2649045), (14, 2270610), (15, 2119236), (18, 1766030), (20, 1589427), (21, 1513740), (28, 1135305), (30, 1059618), (35, 908244), (36, 883015), (42, 756870), (45, 706412), (60, 529809), (63, 504580), (70, 454122), (84, 378435), (90, 353206), (105, 302748), (126, 252290), (140, 227061), (180, 176603), (210, 151374), (252, 126145), (315, 100916), (420, 75687), (630, 50458), (1260, 25229)]