641807880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{503}}^1$

素因数の和:569

約数の個数: 256

約数和(自身を含む): 2322432000

約数和(自身を除く): 1680624120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 49, 56, 60, 62, 70, 84, 93, 98, 105, 120, 124, 140, 147, 155, 168, 186, 196, 210, 217, 245, 248, 280, 294, 310, 343, 372, 392, 420, 434, 465, 490, 503, 588, 620, 651, 686, 735, 744, 840, 868, 930, 980, 1006, 1029, 1085, 1176, 1240, 1302, 1372, 1470, 1509, 1519, 1715, 1736, 1860, 1960, 2012, 2058, 2170, 2515, 2604, 2744, 2940, 3018, 3038, 3255, 3430, 3521, 3720, 4024, 4116, 4340, 4557, 5030, 5145, 5208, 5880, 6036, 6076, 6510, 6860, 7042, 7545, 7595, 8232, 8680, 9114, 10060, 10290, 10563, 10633, 12072, 12152, 13020, 13720, 14084, 15090, 15190, 15593, 17605, 18228, 20120, 20580, 21126, 21266, 22785, 24647, 26040, 28168, 30180, 30380, 31186, 31899, 35210, 36456, 41160, 42252, 42532, 45570, 46779, 49294, 52815, 53165, 60360, 60760, 62372, 63798, 70420, 73941, 77965, 84504, 85064, 91140, 93558, 98588, 105630, 106330, 109151, 123235, 124744, 127596, 140840, 147882, 155930, 159495, 172529, 182280, 187116, 197176, 211260, 212660, 218302, 233895, 246470, 255192, 295764, 311860, 318990, 327453, 345058, 369705, 374232, 422520, 425320, 436604, 467790, 492940, 517587, 545755, 591528, 623720, 637980, 654906, 690116, 739410, 764057, 862645, 873208, 935580, 985880, 1035174, 1091510, 1275960, 1309812, 1380232, 1478820, 1528114, 1637265, 1725290, 1871160, 2070348, 2183020, 2292171, 2587935, 2619624, 2957640, 3056228, 3274530, 3450580, 3820285, 4140696, 4366040, 4584342, 5175870, 5348399, 6112456, 6549060, 6901160, 7640570, 9168684, 10351740, 10696798, 11460855, 13098120, 15281140, 16045197, 18337368, 20703480, 21393596, 22921710, 26741995, 30562280, 32090394, 42787192, 45843420, 53483990, 64180788, 80225985, 91686840, 106967980, 128361576, 160451970, 213935960, 320903940, 641807880]

約数ペア:

[(1, 641807880), (2, 320903940), (3, 213935960), (4, 160451970), (5, 128361576), (6, 106967980), (7, 91686840), (8, 80225985), (10, 64180788), (12, 53483990), (14, 45843420), (15, 42787192), (20, 32090394), (21, 30562280), (24, 26741995), (28, 22921710), (30, 21393596), (31, 20703480), (35, 18337368), (40, 16045197), (42, 15281140), (49, 13098120), (56, 11460855), (60, 10696798), (62, 10351740), (70, 9168684), (84, 7640570), (93, 6901160), (98, 6549060), (105, 6112456), (120, 5348399), (124, 5175870), (140, 4584342), (147, 4366040), (155, 4140696), (168, 3820285), (186, 3450580), (196, 3274530), (210, 3056228), (217, 2957640), (245, 2619624), (248, 2587935), (280, 2292171), (294, 2183020), (310, 2070348), (343, 1871160), (372, 1725290), (392, 1637265), (420, 1528114), (434, 1478820), (465, 1380232), (490, 1309812), (503, 1275960), (588, 1091510), (620, 1035174), (651, 985880), (686, 935580), (735, 873208), (744, 862645), (840, 764057), (868, 739410), (930, 690116), (980, 654906), (1006, 637980), (1029, 623720), (1085, 591528), (1176, 545755), (1240, 517587), (1302, 492940), (1372, 467790), (1470, 436604), (1509, 425320), (1519, 422520), (1715, 374232), (1736, 369705), (1860, 345058), (1960, 327453), (2012, 318990), (2058, 311860), (2170, 295764), (2515, 255192), (2604, 246470), (2744, 233895), (2940, 218302), (3018, 212660), (3038, 211260), (3255, 197176), (3430, 187116), (3521, 182280), (3720, 172529), (4024, 159495), (4116, 155930), (4340, 147882), (4557, 140840), (5030, 127596), (5145, 124744), (5208, 123235), (5880, 109151), (6036, 106330), (6076, 105630), (6510, 98588), (6860, 93558), (7042, 91140), (7545, 85064), (7595, 84504), (8232, 77965), (8680, 73941), (9114, 70420), (10060, 63798), (10290, 62372), (10563, 60760), (10633, 60360), (12072, 53165), (12152, 52815), (13020, 49294), (13720, 46779), (14084, 45570), (15090, 42532), (15190, 42252), (15593, 41160), (17605, 36456), (18228, 35210), (20120, 31899), (20580, 31186), (21126, 30380), (21266, 30180), (22785, 28168), (24647, 26040)]