20672418

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:116

約数の個数: 96

約数和(自身を含む): 50068800

約数和(自身を除く): 29396382

約数列:

[1, 2, 3, 6, 13, 19, 26, 29, 37, 38, 39, 57, 58, 74, 78, 87, 111, 114, 169, 174, 222, 247, 338, 377, 481, 494, 507, 551, 703, 741, 754, 962, 1014, 1073, 1102, 1131, 1406, 1443, 1482, 1653, 2109, 2146, 2262, 2886, 3211, 3219, 3306, 4218, 4901, 6253, 6422, 6438, 7163, 9139, 9633, 9802, 12506, 13949, 14326, 14703, 18278, 18759, 19266, 20387, 21489, 27417, 27898, 29406, 37518, 40774, 41847, 42978, 54834, 61161, 83694, 93119, 118807, 122322, 181337, 186238, 237614, 265031, 279357, 356421, 362674, 530062, 544011, 558714, 712842, 795093, 1088022, 1590186, 3445403, 6890806, 10336209, 20672418]

約数ペア:

[(1, 20672418), (2, 10336209), (3, 6890806), (6, 3445403), (13, 1590186), (19, 1088022), (26, 795093), (29, 712842), (37, 558714), (38, 544011), (39, 530062), (57, 362674), (58, 356421), (74, 279357), (78, 265031), (87, 237614), (111, 186238), (114, 181337), (169, 122322), (174, 118807), (222, 93119), (247, 83694), (338, 61161), (377, 54834), (481, 42978), (494, 41847), (507, 40774), (551, 37518), (703, 29406), (741, 27898), (754, 27417), (962, 21489), (1014, 20387), (1073, 19266), (1102, 18759), (1131, 18278), (1406, 14703), (1443, 14326), (1482, 13949), (1653, 12506), (2109, 9802), (2146, 9633), (2262, 9139), (2886, 7163), (3211, 6438), (3219, 6422), (3306, 6253), (4218, 4901)]