1212540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{2887}}^1$

素因数の和:2906

約数の個数: 48

約数和(自身を含む): 3881472

約数和(自身を除く): 2668932

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, 2887, 5774, 8661, 11548, 14435, 17322, 20209, 28870, 34644, 40418, 43305, 57740, 60627, 80836, 86610, 101045, 121254, 173220, 202090, 242508, 303135, 404180, 606270, 1212540]

約数ペア:

[(1, 1212540), (2, 606270), (3, 404180), (4, 303135), (5, 242508), (6, 202090), (7, 173220), (10, 121254), (12, 101045), (14, 86610), (15, 80836), (20, 60627), (21, 57740), (28, 43305), (30, 40418), (35, 34644), (42, 28870), (60, 20209), (70, 17322), (84, 14435), (105, 11548), (140, 8661), (210, 5774), (420, 2887)]