20174581840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{173}}^1\times {\mathrm{419}}^1$

素因数の和:690

約数の個数: 240

約数和(自身を含む): 55785179520

約数和(自身を除く): 35610597680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 71, 80, 98, 112, 140, 142, 173, 196, 245, 280, 284, 346, 355, 392, 419, 490, 497, 560, 568, 692, 710, 784, 838, 865, 980, 994, 1136, 1211, 1384, 1420, 1676, 1730, 1960, 1988, 2095, 2422, 2485, 2768, 2840, 2933, 3352, 3460, 3479, 3920, 3976, 4190, 4844, 4970, 5680, 5866, 6055, 6704, 6920, 6958, 7952, 8380, 8477, 9688, 9940, 11732, 12110, 12283, 13840, 13916, 14665, 16760, 16954, 17395, 19376, 19880, 20531, 23464, 24220, 24566, 27832, 29330, 29749, 33520, 33908, 34790, 39760, 41062, 42385, 46928, 48440, 49132, 55664, 58660, 59498, 61415, 67816, 69580, 72487, 82124, 84770, 85981, 96880, 98264, 102655, 117320, 118996, 122830, 135632, 139160, 144974, 148745, 164248, 169540, 171962, 196528, 205310, 208243, 234640, 237992, 245660, 278320, 289948, 297490, 328496, 339080, 343924, 362435, 410620, 416486, 429905, 475984, 491320, 507409, 579896, 594980, 601867, 678160, 687848, 724870, 821240, 832972, 859810, 982640, 1014818, 1041215, 1159792, 1189960, 1203734, 1375696, 1449740, 1457701, 1642480, 1665944, 1719620, 2029636, 2082430, 2379920, 2407468, 2537045, 2899480, 2915402, 3009335, 3331888, 3439240, 3551863, 4059272, 4164860, 4814936, 5074090, 5146577, 5798960, 5830804, 6018670, 6878480, 7103726, 7288505, 8118544, 8329720, 9629872, 10148180, 10293154, 11661608, 12037340, 14207452, 14577010, 16659440, 17759315, 20296360, 20586308, 23323216, 24074680, 25732885, 28414904, 29154020, 35518630, 36026039, 40592720, 41172616, 48149360, 51465770, 56829808, 58308040, 71037260, 72052078, 82345232, 102931540, 116616080, 142074520, 144104156, 180130195, 205863080, 252182273, 284149040, 288208312, 360260390, 411726160, 504364546, 576416624, 720520780, 1008729092, 1260911365, 1441041560, 2017458184, 2521822730, 2882083120, 4034916368, 5043645460, 10087290920, 20174581840]

約数ペア:

[(1, 20174581840), (2, 10087290920), (4, 5043645460), (5, 4034916368), (7, 2882083120), (8, 2521822730), (10, 2017458184), (14, 1441041560), (16, 1260911365), (20, 1008729092), (28, 720520780), (35, 576416624), (40, 504364546), (49, 411726160), (56, 360260390), (70, 288208312), (71, 284149040), (80, 252182273), (98, 205863080), (112, 180130195), (140, 144104156), (142, 142074520), (173, 116616080), (196, 102931540), (245, 82345232), (280, 72052078), (284, 71037260), (346, 58308040), (355, 56829808), (392, 51465770), (419, 48149360), (490, 41172616), (497, 40592720), (560, 36026039), (568, 35518630), (692, 29154020), (710, 28414904), (784, 25732885), (838, 24074680), (865, 23323216), (980, 20586308), (994, 20296360), (1136, 17759315), (1211, 16659440), (1384, 14577010), (1420, 14207452), (1676, 12037340), (1730, 11661608), (1960, 10293154), (1988, 10148180), (2095, 9629872), (2422, 8329720), (2485, 8118544), (2768, 7288505), (2840, 7103726), (2933, 6878480), (3352, 6018670), (3460, 5830804), (3479, 5798960), (3920, 5146577), (3976, 5074090), (4190, 4814936), (4844, 4164860), (4970, 4059272), (5680, 3551863), (5866, 3439240), (6055, 3331888), (6704, 3009335), (6920, 2915402), (6958, 2899480), (7952, 2537045), (8380, 2407468), (8477, 2379920), (9688, 2082430), (9940, 2029636), (11732, 1719620), (12110, 1665944), (12283, 1642480), (13840, 1457701), (13916, 1449740), (14665, 1375696), (16760, 1203734), (16954, 1189960), (17395, 1159792), (19376, 1041215), (19880, 1014818), (20531, 982640), (23464, 859810), (24220, 832972), (24566, 821240), (27832, 724870), (29330, 687848), (29749, 678160), (33520, 601867), (33908, 594980), (34790, 579896), (39760, 507409), (41062, 491320), (42385, 475984), (46928, 429905), (48440, 416486), (49132, 410620), (55664, 362435), (58660, 343924), (59498, 339080), (61415, 328496), (67816, 297490), (69580, 289948), (72487, 278320), (82124, 245660), (84770, 237992), (85981, 234640), (96880, 208243), (98264, 205310), (102655, 196528), (117320, 171962), (118996, 169540), (122830, 164248), (135632, 148745), (139160, 144974)]