640244736

素因数分解:

$2^{10}\times 3^5\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:149

約数の個数: 264

約数和(自身を含む): 2002850304

約数和(自身を除く): 1362605568

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 31, 32, 36, 48, 54, 62, 64, 72, 81, 83, 93, 96, 108, 124, 128, 144, 162, 166, 186, 192, 216, 243, 248, 249, 256, 279, 288, 324, 332, 372, 384, 432, 486, 496, 498, 512, 558, 576, 648, 664, 744, 747, 768, 837, 864, 972, 992, 996, 1024, 1116, 1152, 1296, 1328, 1488, 1494, 1536, 1674, 1728, 1944, 1984, 1992, 2232, 2241, 2304, 2511, 2573, 2592, 2656, 2976, 2988, 3072, 3348, 3456, 3888, 3968, 3984, 4464, 4482, 4608, 5022, 5146, 5184, 5312, 5952, 5976, 6696, 6723, 6912, 7533, 7719, 7776, 7936, 7968, 8928, 8964, 9216, 10044, 10292, 10368, 10624, 11904, 11952, 13392, 13446, 13824, 15066, 15438, 15552, 15872, 15936, 17856, 17928, 20088, 20169, 20584, 20736, 21248, 23157, 23808, 23904, 26784, 26892, 27648, 30132, 30876, 31104, 31744, 31872, 35712, 35856, 40176, 40338, 41168, 41472, 42496, 46314, 47616, 47808, 53568, 53784, 60264, 61752, 62208, 63744, 69471, 71424, 71712, 80352, 80676, 82336, 82944, 84992, 92628, 95232, 95616, 107136, 107568, 120528, 123504, 124416, 127488, 138942, 142848, 143424, 160704, 161352, 164672, 185256, 191232, 208413, 214272, 215136, 241056, 247008, 248832, 254976, 277884, 285696, 286848, 321408, 322704, 329344, 370512, 382464, 416826, 428544, 430272, 482112, 494016, 555768, 573696, 625239, 642816, 645408, 658688, 741024, 764928, 833652, 857088, 860544, 964224, 988032, 1111536, 1147392, 1250478, 1285632, 1290816, 1317376, 1482048, 1667304, 1721088, 1928448, 1976064, 2223072, 2294784, 2500956, 2571264, 2581632, 2634752, 2964096, 3334608, 3442176, 3856896, 3952128, 4446144, 5001912, 5163264, 5928192, 6669216, 6884352, 7713792, 7904256, 8892288, 10003824, 10326528, 11856384, 13338432, 17784576, 20007648, 20653056, 23712768, 26676864, 35569152, 40015296, 53353728, 71138304, 80030592, 106707456, 160061184, 213414912, 320122368, 640244736]

約数ペア:

[(1, 640244736), (2, 320122368), (3, 213414912), (4, 160061184), (6, 106707456), (8, 80030592), (9, 71138304), (12, 53353728), (16, 40015296), (18, 35569152), (24, 26676864), (27, 23712768), (31, 20653056), (32, 20007648), (36, 17784576), (48, 13338432), (54, 11856384), (62, 10326528), (64, 10003824), (72, 8892288), (81, 7904256), (83, 7713792), (93, 6884352), (96, 6669216), (108, 5928192), (124, 5163264), (128, 5001912), (144, 4446144), (162, 3952128), (166, 3856896), (186, 3442176), (192, 3334608), (216, 2964096), (243, 2634752), (248, 2581632), (249, 2571264), (256, 2500956), (279, 2294784), (288, 2223072), (324, 1976064), (332, 1928448), (372, 1721088), (384, 1667304), (432, 1482048), (486, 1317376), (496, 1290816), (498, 1285632), (512, 1250478), (558, 1147392), (576, 1111536), (648, 988032), (664, 964224), (744, 860544), (747, 857088), (768, 833652), (837, 764928), (864, 741024), (972, 658688), (992, 645408), (996, 642816), (1024, 625239), (1116, 573696), (1152, 555768), (1296, 494016), (1328, 482112), (1488, 430272), (1494, 428544), (1536, 416826), (1674, 382464), (1728, 370512), (1944, 329344), (1984, 322704), (1992, 321408), (2232, 286848), (2241, 285696), (2304, 277884), (2511, 254976), (2573, 248832), (2592, 247008), (2656, 241056), (2976, 215136), (2988, 214272), (3072, 208413), (3348, 191232), (3456, 185256), (3888, 164672), (3968, 161352), (3984, 160704), (4464, 143424), (4482, 142848), (4608, 138942), (5022, 127488), (5146, 124416), (5184, 123504), (5312, 120528), (5952, 107568), (5976, 107136), (6696, 95616), (6723, 95232), (6912, 92628), (7533, 84992), (7719, 82944), (7776, 82336), (7936, 80676), (7968, 80352), (8928, 71712), (8964, 71424), (9216, 69471), (10044, 63744), (10292, 62208), (10368, 61752), (10624, 60264), (11904, 53784), (11952, 53568), (13392, 47808), (13446, 47616), (13824, 46314), (15066, 42496), (15438, 41472), (15552, 41168), (15872, 40338), (15936, 40176), (17856, 35856), (17928, 35712), (20088, 31872), (20169, 31744), (20584, 31104), (20736, 30876), (21248, 30132), (23157, 27648), (23808, 26892), (23904, 26784)]