40285980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31973}}^1$

素因数の和:31995

約数の個数: 72

約数和(自身を含む): 139662432

約数和(自身を除く): 99376452

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, 31973, 63946, 95919, 127892, 159865, 191838, 223811, 287757, 319730, 383676, 447622, 479595, 575514, 639460, 671433, 895244, 959190, 1119055, 1151028, 1342866, 1438785, 1918380, 2014299, 2238110, 2685732, 2877570, 3357165, 4028598, 4476220, 5755140, 6714330, 8057196, 10071495, 13428660, 20142990, 40285980]

約数ペア:

[(1, 40285980), (2, 20142990), (3, 13428660), (4, 10071495), (5, 8057196), (6, 6714330), (7, 5755140), (9, 4476220), (10, 4028598), (12, 3357165), (14, 2877570), (15, 2685732), (18, 2238110), (20, 2014299), (21, 1918380), (28, 1438785), (30, 1342866), (35, 1151028), (36, 1119055), (42, 959190), (45, 895244), (60, 671433), (63, 639460), (70, 575514), (84, 479595), (90, 447622), (105, 383676), (126, 319730), (140, 287757), (180, 223811), (210, 191838), (252, 159865), (315, 127892), (420, 95919), (630, 63946), (1260, 31973)]