1390866540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{3311587}}^1$

素因数の和:3311606

約数の個数: 48

約数和(自身を含む): 4450774272

約数和(自身を除く): 3059907732

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 3311587, 6623174, 9934761, 13246348, 16557935, 19869522, 23181109, 33115870, 39739044, 46362218, 49673805, 66231740, 69543327, 92724436, 99347610, 115905545, 139086654, 198695220, 231811090, 278173308, 347716635, 463622180, 695433270, 1390866540]

約数ペア:

[(1, 1390866540), (2, 695433270), (3, 463622180), (4, 347716635), (5, 278173308), (6, 231811090), (7, 198695220), (10, 139086654), (12, 115905545), (14, 99347610), (15, 92724436), (20, 69543327), (21, 66231740), (28, 49673805), (30, 46362218), (35, 39739044), (42, 33115870), (60, 23181109), (70, 19869522), (84, 16557935), (105, 13246348), (140, 9934761), (210, 6623174), (420, 3311587)]