639804516

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:501

約数の個数: 96

約数和(自身を含む): 1638083328

約数和(自身を除く): 998278812

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 151, 156, 157, 173, 302, 314, 346, 453, 471, 519, 604, 628, 692, 906, 942, 1038, 1812, 1884, 1963, 2041, 2076, 2249, 3926, 4082, 4498, 5889, 6123, 6747, 7852, 8164, 8996, 11778, 12246, 13494, 23556, 23707, 24492, 26123, 26988, 27161, 47414, 52246, 54322, 71121, 78369, 81483, 94828, 104492, 108644, 142242, 156738, 162966, 284484, 308191, 313476, 325932, 339599, 353093, 616382, 679198, 706186, 924573, 1018797, 1059279, 1232764, 1358396, 1412372, 1849146, 2037594, 2118558, 3698292, 4075188, 4101311, 4237116, 8202622, 12303933, 16405244, 24607866, 49215732, 53317043, 106634086, 159951129, 213268172, 319902258, 639804516]

約数ペア:

[(1, 639804516), (2, 319902258), (3, 213268172), (4, 159951129), (6, 106634086), (12, 53317043), (13, 49215732), (26, 24607866), (39, 16405244), (52, 12303933), (78, 8202622), (151, 4237116), (156, 4101311), (157, 4075188), (173, 3698292), (302, 2118558), (314, 2037594), (346, 1849146), (453, 1412372), (471, 1358396), (519, 1232764), (604, 1059279), (628, 1018797), (692, 924573), (906, 706186), (942, 679198), (1038, 616382), (1812, 353093), (1884, 339599), (1963, 325932), (2041, 313476), (2076, 308191), (2249, 284484), (3926, 162966), (4082, 156738), (4498, 142242), (5889, 108644), (6123, 104492), (6747, 94828), (7852, 81483), (8164, 78369), (8996, 71121), (11778, 54322), (12246, 52246), (13494, 47414), (23556, 27161), (23707, 26988), (24492, 26123)]