67812780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{161459}}^1$

素因数の和:161478

約数の個数: 48

約数和(自身を含む): 217002240

約数和(自身を除く): 149189460

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, 161459, 322918, 484377, 645836, 807295, 968754, 1130213, 1614590, 1937508, 2260426, 2421885, 3229180, 3390639, 4520852, 4843770, 5651065, 6781278, 9687540, 11302130, 13562556, 16953195, 22604260, 33906390, 67812780]

約数ペア:

[(1, 67812780), (2, 33906390), (3, 22604260), (4, 16953195), (5, 13562556), (6, 11302130), (7, 9687540), (10, 6781278), (12, 5651065), (14, 4843770), (15, 4520852), (20, 3390639), (21, 3229180), (28, 2421885), (30, 2260426), (35, 1937508), (42, 1614590), (60, 1130213), (70, 968754), (84, 807295), (105, 645836), (140, 484377), (210, 322918), (420, 161459)]