639521568

素因数分解:

$2^5\times 3^5\times 7^1\times {\mathrm{31}}^1\times {\mathrm{379}}^1$

素因数の和:442

約数の個数: 288

約数和(自身を含む): 2230824960

約数和(自身を除く): 1591303392

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 31, 32, 36, 42, 48, 54, 56, 62, 63, 72, 81, 84, 93, 96, 108, 112, 124, 126, 144, 162, 168, 186, 189, 216, 217, 224, 243, 248, 252, 279, 288, 324, 336, 372, 378, 379, 432, 434, 486, 496, 504, 558, 567, 648, 651, 672, 744, 756, 758, 837, 864, 868, 972, 992, 1008, 1116, 1134, 1137, 1296, 1302, 1488, 1512, 1516, 1674, 1701, 1736, 1944, 1953, 2016, 2232, 2268, 2274, 2511, 2592, 2604, 2653, 2976, 3024, 3032, 3348, 3402, 3411, 3472, 3888, 3906, 4464, 4536, 4548, 5022, 5208, 5306, 5859, 6048, 6064, 6696, 6804, 6822, 6944, 7533, 7776, 7812, 7959, 8928, 9072, 9096, 10044, 10233, 10416, 10612, 11718, 11749, 12128, 13392, 13608, 13644, 15066, 15624, 15918, 17577, 18144, 18192, 20088, 20466, 20832, 21224, 23436, 23498, 23877, 26784, 27216, 27288, 30132, 30699, 31248, 31836, 35154, 35247, 36384, 40176, 40932, 42448, 46872, 46996, 47754, 52731, 54432, 54576, 60264, 61398, 62496, 63672, 70308, 70494, 71631, 80352, 81864, 82243, 84896, 92097, 93744, 93992, 95508, 105462, 105741, 109152, 120528, 122796, 127344, 140616, 140988, 143262, 163728, 164486, 184194, 187488, 187984, 191016, 210924, 211482, 214893, 241056, 245592, 246729, 254688, 281232, 281976, 286524, 317223, 327456, 328972, 368388, 375968, 382032, 421848, 422964, 429786, 491184, 493458, 562464, 563952, 573048, 634446, 644679, 657944, 736776, 740187, 764064, 843696, 845928, 859572, 951669, 982368, 986916, 1127904, 1146096, 1268892, 1289358, 1315888, 1473552, 1480374, 1687392, 1691856, 1719144, 1903338, 1973832, 2220561, 2292192, 2537784, 2578716, 2631776, 2855007, 2947104, 2960748, 3383712, 3438288, 3806676, 3947664, 4441122, 5075568, 5157432, 5710014, 5921496, 6661683, 6876576, 7613352, 7895328, 8882244, 10151136, 10314864, 11420028, 11842992, 13323366, 15226704, 17764488, 19985049, 20629728, 22840056, 23685984, 26646732, 30453408, 35528976, 39970098, 45680112, 53293464, 71057952, 79940196, 91360224, 106586928, 159880392, 213173856, 319760784, 639521568]

約数ペア:

[(1, 639521568), (2, 319760784), (3, 213173856), (4, 159880392), (6, 106586928), (7, 91360224), (8, 79940196), (9, 71057952), (12, 53293464), (14, 45680112), (16, 39970098), (18, 35528976), (21, 30453408), (24, 26646732), (27, 23685984), (28, 22840056), (31, 20629728), (32, 19985049), (36, 17764488), (42, 15226704), (48, 13323366), (54, 11842992), (56, 11420028), (62, 10314864), (63, 10151136), (72, 8882244), (81, 7895328), (84, 7613352), (93, 6876576), (96, 6661683), (108, 5921496), (112, 5710014), (124, 5157432), (126, 5075568), (144, 4441122), (162, 3947664), (168, 3806676), (186, 3438288), (189, 3383712), (216, 2960748), (217, 2947104), (224, 2855007), (243, 2631776), (248, 2578716), (252, 2537784), (279, 2292192), (288, 2220561), (324, 1973832), (336, 1903338), (372, 1719144), (378, 1691856), (379, 1687392), (432, 1480374), (434, 1473552), (486, 1315888), (496, 1289358), (504, 1268892), (558, 1146096), (567, 1127904), (648, 986916), (651, 982368), (672, 951669), (744, 859572), (756, 845928), (758, 843696), (837, 764064), (864, 740187), (868, 736776), (972, 657944), (992, 644679), (1008, 634446), (1116, 573048), (1134, 563952), (1137, 562464), (1296, 493458), (1302, 491184), (1488, 429786), (1512, 422964), (1516, 421848), (1674, 382032), (1701, 375968), (1736, 368388), (1944, 328972), (1953, 327456), (2016, 317223), (2232, 286524), (2268, 281976), (2274, 281232), (2511, 254688), (2592, 246729), (2604, 245592), (2653, 241056), (2976, 214893), (3024, 211482), (3032, 210924), (3348, 191016), (3402, 187984), (3411, 187488), (3472, 184194), (3888, 164486), (3906, 163728), (4464, 143262), (4536, 140988), (4548, 140616), (5022, 127344), (5208, 122796), (5306, 120528), (5859, 109152), (6048, 105741), (6064, 105462), (6696, 95508), (6804, 93992), (6822, 93744), (6944, 92097), (7533, 84896), (7776, 82243), (7812, 81864), (7959, 80352), (8928, 71631), (9072, 70494), (9096, 70308), (10044, 63672), (10233, 62496), (10416, 61398), (10612, 60264), (11718, 54576), (11749, 54432), (12128, 52731), (13392, 47754), (13608, 46996), (13644, 46872), (15066, 42448), (15624, 40932), (15918, 40176), (17577, 36384), (18144, 35247), (18192, 35154), (20088, 31836), (20466, 31248), (20832, 30699), (21224, 30132), (23436, 27288), (23498, 27216), (23877, 26784)]