28009380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^3\times {\mathrm{1361}}^1$

素因数の和:1394

約数の個数: 96

約数和(自身を含む): 91526400

約数和(自身を除く): 63517020

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 343, 420, 490, 588, 686, 735, 980, 1029, 1361, 1372, 1470, 1715, 2058, 2722, 2940, 3430, 4083, 4116, 5145, 5444, 6805, 6860, 8166, 9527, 10290, 13610, 16332, 19054, 20415, 20580, 27220, 28581, 38108, 40830, 47635, 57162, 66689, 81660, 95270, 114324, 133378, 142905, 190540, 200067, 266756, 285810, 333445, 400134, 466823, 571620, 666890, 800268, 933646, 1000335, 1333780, 1400469, 1867292, 2000670, 2334115, 2800938, 4001340, 4668230, 5601876, 7002345, 9336460, 14004690, 28009380]

約数ペア:

[(1, 28009380), (2, 14004690), (3, 9336460), (4, 7002345), (5, 5601876), (6, 4668230), (7, 4001340), (10, 2800938), (12, 2334115), (14, 2000670), (15, 1867292), (20, 1400469), (21, 1333780), (28, 1000335), (30, 933646), (35, 800268), (42, 666890), (49, 571620), (60, 466823), (70, 400134), (84, 333445), (98, 285810), (105, 266756), (140, 200067), (147, 190540), (196, 142905), (210, 133378), (245, 114324), (294, 95270), (343, 81660), (420, 66689), (490, 57162), (588, 47635), (686, 40830), (735, 38108), (980, 28581), (1029, 27220), (1361, 20580), (1372, 20415), (1470, 19054), (1715, 16332), (2058, 13610), (2722, 10290), (2940, 9527), (3430, 8166), (4083, 6860), (4116, 6805), (5145, 5444)]