280985040

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{283}}^1$

素因数の和:506

約数の個数: 240

約数和(自身を含む): 1087751808

約数和(自身を除く): 806766768

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 197, 210, 240, 252, 280, 283, 315, 336, 360, 394, 420, 504, 560, 566, 591, 630, 720, 788, 840, 849, 985, 1008, 1132, 1182, 1260, 1379, 1415, 1576, 1680, 1698, 1773, 1970, 1981, 2264, 2364, 2520, 2547, 2758, 2830, 2955, 3152, 3396, 3546, 3940, 3962, 4137, 4245, 4528, 4728, 5040, 5094, 5516, 5660, 5910, 5943, 6792, 6895, 7092, 7880, 7924, 8274, 8490, 8865, 9456, 9905, 10188, 11032, 11320, 11820, 11886, 12411, 12735, 13584, 13790, 14184, 15760, 15848, 16548, 16980, 17730, 17829, 19810, 20376, 20685, 22064, 22640, 23640, 23772, 24822, 25470, 27580, 28368, 29715, 31696, 33096, 33960, 35460, 35658, 39620, 40752, 41370, 47280, 47544, 49644, 50940, 55160, 55751, 59430, 62055, 66192, 67920, 70920, 71316, 79240, 82740, 89145, 95088, 99288, 101880, 110320, 111502, 118860, 124110, 141840, 142632, 158480, 165480, 167253, 178290, 198576, 203760, 223004, 237720, 248220, 278755, 285264, 330960, 334506, 356580, 390257, 446008, 475440, 496440, 501759, 557510, 669012, 713160, 780514, 836265, 892016, 992880, 1003518, 1115020, 1170771, 1338024, 1426320, 1561028, 1672530, 1951285, 2007036, 2230040, 2341542, 2508795, 2676048, 3122056, 3345060, 3512313, 3902570, 4014072, 4460080, 4683084, 5017590, 5853855, 6244112, 6690120, 7024626, 7805140, 8028144, 9366168, 10035180, 11707710, 13380240, 14049252, 15610280, 17561565, 18732336, 20070360, 23415420, 28098504, 31220560, 35123130, 40140720, 46830840, 56197008, 70246260, 93661680, 140492520, 280985040]

約数ペア:

[(1, 280985040), (2, 140492520), (3, 93661680), (4, 70246260), (5, 56197008), (6, 46830840), (7, 40140720), (8, 35123130), (9, 31220560), (10, 28098504), (12, 23415420), (14, 20070360), (15, 18732336), (16, 17561565), (18, 15610280), (20, 14049252), (21, 13380240), (24, 11707710), (28, 10035180), (30, 9366168), (35, 8028144), (36, 7805140), (40, 7024626), (42, 6690120), (45, 6244112), (48, 5853855), (56, 5017590), (60, 4683084), (63, 4460080), (70, 4014072), (72, 3902570), (80, 3512313), (84, 3345060), (90, 3122056), (105, 2676048), (112, 2508795), (120, 2341542), (126, 2230040), (140, 2007036), (144, 1951285), (168, 1672530), (180, 1561028), (197, 1426320), (210, 1338024), (240, 1170771), (252, 1115020), (280, 1003518), (283, 992880), (315, 892016), (336, 836265), (360, 780514), (394, 713160), (420, 669012), (504, 557510), (560, 501759), (566, 496440), (591, 475440), (630, 446008), (720, 390257), (788, 356580), (840, 334506), (849, 330960), (985, 285264), (1008, 278755), (1132, 248220), (1182, 237720), (1260, 223004), (1379, 203760), (1415, 198576), (1576, 178290), (1680, 167253), (1698, 165480), (1773, 158480), (1970, 142632), (1981, 141840), (2264, 124110), (2364, 118860), (2520, 111502), (2547, 110320), (2758, 101880), (2830, 99288), (2955, 95088), (3152, 89145), (3396, 82740), (3546, 79240), (3940, 71316), (3962, 70920), (4137, 67920), (4245, 66192), (4528, 62055), (4728, 59430), (5040, 55751), (5094, 55160), (5516, 50940), (5660, 49644), (5910, 47544), (5943, 47280), (6792, 41370), (6895, 40752), (7092, 39620), (7880, 35658), (7924, 35460), (8274, 33960), (8490, 33096), (8865, 31696), (9456, 29715), (9905, 28368), (10188, 27580), (11032, 25470), (11320, 24822), (11820, 23772), (11886, 23640), (12411, 22640), (12735, 22064), (13584, 20685), (13790, 20376), (14184, 19810), (15760, 17829), (15848, 17730), (16548, 16980)]