81342100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4007}}^1$

素因数の和:4057

約数の個数: 72

約数和(自身を含む): 208736640

約数和(自身を除く): 127394540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 29, 35, 50, 58, 70, 100, 116, 140, 145, 175, 203, 290, 350, 406, 580, 700, 725, 812, 1015, 1450, 2030, 2900, 4007, 4060, 5075, 8014, 10150, 16028, 20035, 20300, 28049, 40070, 56098, 80140, 100175, 112196, 116203, 140245, 200350, 232406, 280490, 400700, 464812, 560980, 581015, 701225, 813421, 1162030, 1402450, 1626842, 2324060, 2804900, 2905075, 3253684, 4067105, 5810150, 8134210, 11620300, 16268420, 20335525, 40671050, 81342100]

約数ペア:

[(1, 81342100), (2, 40671050), (4, 20335525), (5, 16268420), (7, 11620300), (10, 8134210), (14, 5810150), (20, 4067105), (25, 3253684), (28, 2905075), (29, 2804900), (35, 2324060), (50, 1626842), (58, 1402450), (70, 1162030), (100, 813421), (116, 701225), (140, 581015), (145, 560980), (175, 464812), (203, 400700), (290, 280490), (350, 232406), (406, 200350), (580, 140245), (700, 116203), (725, 112196), (812, 100175), (1015, 80140), (1450, 56098), (2030, 40070), (2900, 28049), (4007, 20300), (4060, 20035), (5075, 16028), (8014, 10150)]