638577864

素因数分解:

$2^3\times 3^3\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{349}}^1$

素因数の和:604

約数の個数: 128

約数和(自身を含む): 1829520000

約数和(自身を除く): 1190942136

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 43, 54, 72, 86, 108, 129, 172, 197, 216, 258, 344, 349, 387, 394, 516, 591, 698, 774, 788, 1032, 1047, 1161, 1182, 1396, 1548, 1576, 1773, 2094, 2322, 2364, 2792, 3096, 3141, 3546, 4188, 4644, 4728, 5319, 6282, 7092, 8376, 8471, 9288, 9423, 10638, 12564, 14184, 15007, 16942, 18846, 21276, 25128, 25413, 30014, 33884, 37692, 42552, 45021, 50826, 60028, 67768, 68753, 75384, 76239, 90042, 101652, 120056, 135063, 137506, 152478, 180084, 203304, 206259, 228717, 270126, 275012, 304956, 360168, 405189, 412518, 457434, 540252, 550024, 609912, 618777, 810378, 825036, 914868, 1080504, 1237554, 1620756, 1650072, 1829736, 1856331, 2475108, 2956379, 3241512, 3712662, 4950216, 5912758, 7425324, 8869137, 11825516, 14850648, 17738274, 23651032, 26607411, 35476548, 53214822, 70953096, 79822233, 106429644, 159644466, 212859288, 319288932, 638577864]

約数ペア:

[(1, 638577864), (2, 319288932), (3, 212859288), (4, 159644466), (6, 106429644), (8, 79822233), (9, 70953096), (12, 53214822), (18, 35476548), (24, 26607411), (27, 23651032), (36, 17738274), (43, 14850648), (54, 11825516), (72, 8869137), (86, 7425324), (108, 5912758), (129, 4950216), (172, 3712662), (197, 3241512), (216, 2956379), (258, 2475108), (344, 1856331), (349, 1829736), (387, 1650072), (394, 1620756), (516, 1237554), (591, 1080504), (698, 914868), (774, 825036), (788, 810378), (1032, 618777), (1047, 609912), (1161, 550024), (1182, 540252), (1396, 457434), (1548, 412518), (1576, 405189), (1773, 360168), (2094, 304956), (2322, 275012), (2364, 270126), (2792, 228717), (3096, 206259), (3141, 203304), (3546, 180084), (4188, 152478), (4644, 137506), (4728, 135063), (5319, 120056), (6282, 101652), (7092, 90042), (8376, 76239), (8471, 75384), (9288, 68753), (9423, 67768), (10638, 60028), (12564, 50826), (14184, 45021), (15007, 42552), (16942, 37692), (18846, 33884), (21276, 30014), (25128, 25413)]