1280412840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{49171}}^1$

素因数の和:49223

約数の個数: 128

約数和(自身を含む): 4531691520

約数和(自身を除く): 3251278680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 168, 186, 210, 217, 248, 280, 310, 372, 420, 434, 465, 620, 651, 744, 840, 868, 930, 1085, 1240, 1302, 1736, 1860, 2170, 2604, 3255, 3720, 4340, 5208, 6510, 8680, 13020, 26040, 49171, 98342, 147513, 196684, 245855, 295026, 344197, 393368, 491710, 590052, 688394, 737565, 983420, 1032591, 1180104, 1376788, 1475130, 1524301, 1720985, 1966840, 2065182, 2753576, 2950260, 3048602, 3441970, 4130364, 4572903, 5162955, 5900520, 6097204, 6883940, 7621505, 8260728, 9145806, 10325910, 10670107, 12194408, 13767880, 15243010, 18291612, 20651820, 21340214, 22864515, 30486020, 32010321, 36583224, 41303640, 42680428, 45729030, 53350535, 60972040, 64020642, 85360856, 91458060, 106701070, 128041284, 160051605, 182916120, 213402140, 256082568, 320103210, 426804280, 640206420, 1280412840]

約数ペア:

[(1, 1280412840), (2, 640206420), (3, 426804280), (4, 320103210), (5, 256082568), (6, 213402140), (7, 182916120), (8, 160051605), (10, 128041284), (12, 106701070), (14, 91458060), (15, 85360856), (20, 64020642), (21, 60972040), (24, 53350535), (28, 45729030), (30, 42680428), (31, 41303640), (35, 36583224), (40, 32010321), (42, 30486020), (56, 22864515), (60, 21340214), (62, 20651820), (70, 18291612), (84, 15243010), (93, 13767880), (105, 12194408), (120, 10670107), (124, 10325910), (140, 9145806), (155, 8260728), (168, 7621505), (186, 6883940), (210, 6097204), (217, 5900520), (248, 5162955), (280, 4572903), (310, 4130364), (372, 3441970), (420, 3048602), (434, 2950260), (465, 2753576), (620, 2065182), (651, 1966840), (744, 1720985), (840, 1524301), (868, 1475130), (930, 1376788), (1085, 1180104), (1240, 1032591), (1302, 983420), (1736, 737565), (1860, 688394), (2170, 590052), (2604, 491710), (3255, 393368), (3720, 344197), (4340, 295026), (5208, 245855), (6510, 196684), (8680, 147513), (13020, 98342), (26040, 49171)]