257252880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{487}}^1$

素因数の和:605

約数の個数: 160

約数和(自身を含む): 836517888

約数和(自身を除く): 579265008

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 71, 80, 93, 120, 124, 142, 155, 186, 213, 240, 248, 284, 310, 355, 372, 426, 465, 487, 496, 568, 620, 710, 744, 852, 930, 974, 1065, 1136, 1240, 1420, 1461, 1488, 1704, 1860, 1948, 2130, 2201, 2435, 2480, 2840, 2922, 3408, 3720, 3896, 4260, 4402, 4870, 5680, 5844, 6603, 7305, 7440, 7792, 8520, 8804, 9740, 11005, 11688, 13206, 14610, 15097, 17040, 17608, 19480, 22010, 23376, 26412, 29220, 30194, 33015, 34577, 35216, 38960, 44020, 45291, 52824, 58440, 60388, 66030, 69154, 75485, 88040, 90582, 103731, 105648, 116880, 120776, 132060, 138308, 150970, 172885, 176080, 181164, 207462, 226455, 241552, 264120, 276616, 301940, 345770, 362328, 414924, 452910, 518655, 528240, 553232, 603880, 691540, 724656, 829848, 905820, 1037310, 1071887, 1207760, 1383080, 1659696, 1811640, 2074620, 2143774, 2766160, 3215661, 3623280, 4149240, 4287548, 5359435, 6431322, 8298480, 8575096, 10718870, 12862644, 16078305, 17150192, 21437740, 25725288, 32156610, 42875480, 51450576, 64313220, 85750960, 128626440, 257252880]

約数ペア:

[(1, 257252880), (2, 128626440), (3, 85750960), (4, 64313220), (5, 51450576), (6, 42875480), (8, 32156610), (10, 25725288), (12, 21437740), (15, 17150192), (16, 16078305), (20, 12862644), (24, 10718870), (30, 8575096), (31, 8298480), (40, 6431322), (48, 5359435), (60, 4287548), (62, 4149240), (71, 3623280), (80, 3215661), (93, 2766160), (120, 2143774), (124, 2074620), (142, 1811640), (155, 1659696), (186, 1383080), (213, 1207760), (240, 1071887), (248, 1037310), (284, 905820), (310, 829848), (355, 724656), (372, 691540), (426, 603880), (465, 553232), (487, 528240), (496, 518655), (568, 452910), (620, 414924), (710, 362328), (744, 345770), (852, 301940), (930, 276616), (974, 264120), (1065, 241552), (1136, 226455), (1240, 207462), (1420, 181164), (1461, 176080), (1488, 172885), (1704, 150970), (1860, 138308), (1948, 132060), (2130, 120776), (2201, 116880), (2435, 105648), (2480, 103731), (2840, 90582), (2922, 88040), (3408, 75485), (3720, 69154), (3896, 66030), (4260, 60388), (4402, 58440), (4870, 52824), (5680, 45291), (5844, 44020), (6603, 38960), (7305, 35216), (7440, 34577), (7792, 33015), (8520, 30194), (8804, 29220), (9740, 26412), (11005, 23376), (11688, 22010), (13206, 19480), (14610, 17608), (15097, 17040)]