20388564

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{149}}^1\times {\mathrm{181}}^1$

素因数の和:350

約数の個数: 96

約数和(自身を含む): 61152000

約数和(自身を除く): 40763436

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 149, 181, 189, 252, 298, 362, 378, 447, 543, 596, 724, 756, 894, 1043, 1086, 1267, 1341, 1629, 1788, 2086, 2172, 2534, 2682, 3129, 3258, 3801, 4023, 4172, 4887, 5068, 5364, 6258, 6516, 7602, 8046, 9387, 9774, 11403, 12516, 15204, 16092, 18774, 19548, 22806, 26969, 28161, 34209, 37548, 45612, 53938, 56322, 68418, 80907, 107876, 112644, 136836, 161814, 188783, 242721, 323628, 377566, 485442, 566349, 728163, 755132, 970884, 1132698, 1456326, 1699047, 2265396, 2912652, 3398094, 5097141, 6796188, 10194282, 20388564]

約数ペア:

[(1, 20388564), (2, 10194282), (3, 6796188), (4, 5097141), (6, 3398094), (7, 2912652), (9, 2265396), (12, 1699047), (14, 1456326), (18, 1132698), (21, 970884), (27, 755132), (28, 728163), (36, 566349), (42, 485442), (54, 377566), (63, 323628), (84, 242721), (108, 188783), (126, 161814), (149, 136836), (181, 112644), (189, 107876), (252, 80907), (298, 68418), (362, 56322), (378, 53938), (447, 45612), (543, 37548), (596, 34209), (724, 28161), (756, 26969), (894, 22806), (1043, 19548), (1086, 18774), (1267, 16092), (1341, 15204), (1629, 12516), (1788, 11403), (2086, 9774), (2172, 9387), (2534, 8046), (2682, 7602), (3129, 6516), (3258, 6258), (3801, 5364), (4023, 5068), (4172, 4887)]