389418540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{927187}}^1$

素因数の和:927206

約数の個数: 48

約数和(自身を含む): 1246140672

約数和(自身を除く): 856722132

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, 927187, 1854374, 2781561, 3708748, 4635935, 5563122, 6490309, 9271870, 11126244, 12980618, 13907805, 18543740, 19470927, 25961236, 27815610, 32451545, 38941854, 55631220, 64903090, 77883708, 97354635, 129806180, 194709270, 389418540]

約数ペア:

[(1, 389418540), (2, 194709270), (3, 129806180), (4, 97354635), (5, 77883708), (6, 64903090), (7, 55631220), (10, 38941854), (12, 32451545), (14, 27815610), (15, 25961236), (20, 19470927), (21, 18543740), (28, 13907805), (30, 12980618), (35, 11126244), (42, 9271870), (60, 6490309), (70, 5563122), (84, 4635935), (105, 3708748), (140, 2781561), (210, 1854374), (420, 927187)]