261859920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^3\times {\mathrm{3181}}^1$

素因数の和:3218

約数の個数: 160

約数和(自身を含む): 946963200

約数和(自身を除く): 685103280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 196, 210, 240, 245, 280, 294, 336, 343, 392, 420, 490, 560, 588, 686, 735, 784, 840, 980, 1029, 1176, 1372, 1470, 1680, 1715, 1960, 2058, 2352, 2744, 2940, 3181, 3430, 3920, 4116, 5145, 5488, 5880, 6362, 6860, 8232, 9543, 10290, 11760, 12724, 13720, 15905, 16464, 19086, 20580, 22267, 25448, 27440, 31810, 38172, 41160, 44534, 47715, 50896, 63620, 66801, 76344, 82320, 89068, 95430, 111335, 127240, 133602, 152688, 155869, 178136, 190860, 222670, 254480, 267204, 311738, 334005, 356272, 381720, 445340, 467607, 534408, 623476, 668010, 763440, 779345, 890680, 935214, 1068816, 1091083, 1246952, 1336020, 1558690, 1781360, 1870428, 2182166, 2338035, 2493904, 2672040, 3117380, 3273249, 3740856, 4364332, 4676070, 5344080, 5455415, 6234760, 6546498, 7481712, 8728664, 9352140, 10910830, 12469520, 13092996, 16366245, 17457328, 18704280, 21821660, 26185992, 32732490, 37408560, 43643320, 52371984, 65464980, 87286640, 130929960, 261859920]

約数ペア:

[(1, 261859920), (2, 130929960), (3, 87286640), (4, 65464980), (5, 52371984), (6, 43643320), (7, 37408560), (8, 32732490), (10, 26185992), (12, 21821660), (14, 18704280), (15, 17457328), (16, 16366245), (20, 13092996), (21, 12469520), (24, 10910830), (28, 9352140), (30, 8728664), (35, 7481712), (40, 6546498), (42, 6234760), (48, 5455415), (49, 5344080), (56, 4676070), (60, 4364332), (70, 3740856), (80, 3273249), (84, 3117380), (98, 2672040), (105, 2493904), (112, 2338035), (120, 2182166), (140, 1870428), (147, 1781360), (168, 1558690), (196, 1336020), (210, 1246952), (240, 1091083), (245, 1068816), (280, 935214), (294, 890680), (336, 779345), (343, 763440), (392, 668010), (420, 623476), (490, 534408), (560, 467607), (588, 445340), (686, 381720), (735, 356272), (784, 334005), (840, 311738), (980, 267204), (1029, 254480), (1176, 222670), (1372, 190860), (1470, 178136), (1680, 155869), (1715, 152688), (1960, 133602), (2058, 127240), (2352, 111335), (2744, 95430), (2940, 89068), (3181, 82320), (3430, 76344), (3920, 66801), (4116, 63620), (5145, 50896), (5488, 47715), (5880, 44534), (6362, 41160), (6860, 38172), (8232, 31810), (9543, 27440), (10290, 25448), (11760, 22267), (12724, 20580), (13720, 19086), (15905, 16464)]