20674860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:255

約数の個数: 96

約数和(自身を含む): 60775680

約数和(自身を除く): 40100820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 67, 74, 111, 134, 139, 148, 185, 201, 222, 268, 278, 335, 370, 402, 417, 444, 555, 556, 670, 695, 740, 804, 834, 1005, 1110, 1340, 1390, 1668, 2010, 2085, 2220, 2479, 2780, 4020, 4170, 4958, 5143, 7437, 8340, 9313, 9916, 10286, 12395, 14874, 15429, 18626, 20572, 24790, 25715, 27939, 29748, 30858, 37185, 37252, 46565, 49580, 51430, 55878, 61716, 74370, 77145, 93130, 102860, 111756, 139695, 148740, 154290, 186260, 279390, 308580, 344581, 558780, 689162, 1033743, 1378324, 1722905, 2067486, 3445810, 4134972, 5168715, 6891620, 10337430, 20674860]

約数ペア:

[(1, 20674860), (2, 10337430), (3, 6891620), (4, 5168715), (5, 4134972), (6, 3445810), (10, 2067486), (12, 1722905), (15, 1378324), (20, 1033743), (30, 689162), (37, 558780), (60, 344581), (67, 308580), (74, 279390), (111, 186260), (134, 154290), (139, 148740), (148, 139695), (185, 111756), (201, 102860), (222, 93130), (268, 77145), (278, 74370), (335, 61716), (370, 55878), (402, 51430), (417, 49580), (444, 46565), (555, 37252), (556, 37185), (670, 30858), (695, 29748), (740, 27939), (804, 25715), (834, 24790), (1005, 20572), (1110, 18626), (1340, 15429), (1390, 14874), (1668, 12395), (2010, 10286), (2085, 9916), (2220, 9313), (2479, 8340), (2780, 7437), (4020, 5143), (4170, 4958)]