642940416

素因数分解:

$2^9\times 3^4\times {\mathrm{37}}^1\times {\mathrm{419}}^1$

素因数の和:486

約数の個数: 200

約数和(自身を含む): 1975576680

約数和(自身を除く): 1332636264

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 37, 48, 54, 64, 72, 74, 81, 96, 108, 111, 128, 144, 148, 162, 192, 216, 222, 256, 288, 296, 324, 333, 384, 419, 432, 444, 512, 576, 592, 648, 666, 768, 838, 864, 888, 999, 1152, 1184, 1257, 1296, 1332, 1536, 1676, 1728, 1776, 1998, 2304, 2368, 2514, 2592, 2664, 2997, 3352, 3456, 3552, 3771, 3996, 4608, 4736, 5028, 5184, 5328, 5994, 6704, 6912, 7104, 7542, 7992, 9472, 10056, 10368, 10656, 11313, 11988, 13408, 13824, 14208, 15084, 15503, 15984, 18944, 20112, 20736, 21312, 22626, 23976, 26816, 28416, 30168, 31006, 31968, 33939, 40224, 41472, 42624, 45252, 46509, 47952, 53632, 56832, 60336, 62012, 63936, 67878, 80448, 85248, 90504, 93018, 95904, 107264, 120672, 124024, 127872, 135756, 139527, 160896, 170496, 181008, 186036, 191808, 214528, 241344, 248048, 255744, 271512, 279054, 321792, 362016, 372072, 383616, 418581, 482688, 496096, 511488, 543024, 558108, 643584, 724032, 744144, 767232, 837162, 965376, 992192, 1086048, 1116216, 1255743, 1448064, 1488288, 1534464, 1674324, 1930752, 1984384, 2172096, 2232432, 2511486, 2896128, 2976576, 3348648, 3968768, 4344192, 4464864, 5022972, 5792256, 5953152, 6697296, 7937536, 8688384, 8929728, 10045944, 11906304, 13394592, 17376768, 17859456, 20091888, 23812608, 26789184, 35718912, 40183776, 53578368, 71437824, 80367552, 107156736, 160735104, 214313472, 321470208, 642940416]

約数ペア:

[(1, 642940416), (2, 321470208), (3, 214313472), (4, 160735104), (6, 107156736), (8, 80367552), (9, 71437824), (12, 53578368), (16, 40183776), (18, 35718912), (24, 26789184), (27, 23812608), (32, 20091888), (36, 17859456), (37, 17376768), (48, 13394592), (54, 11906304), (64, 10045944), (72, 8929728), (74, 8688384), (81, 7937536), (96, 6697296), (108, 5953152), (111, 5792256), (128, 5022972), (144, 4464864), (148, 4344192), (162, 3968768), (192, 3348648), (216, 2976576), (222, 2896128), (256, 2511486), (288, 2232432), (296, 2172096), (324, 1984384), (333, 1930752), (384, 1674324), (419, 1534464), (432, 1488288), (444, 1448064), (512, 1255743), (576, 1116216), (592, 1086048), (648, 992192), (666, 965376), (768, 837162), (838, 767232), (864, 744144), (888, 724032), (999, 643584), (1152, 558108), (1184, 543024), (1257, 511488), (1296, 496096), (1332, 482688), (1536, 418581), (1676, 383616), (1728, 372072), (1776, 362016), (1998, 321792), (2304, 279054), (2368, 271512), (2514, 255744), (2592, 248048), (2664, 241344), (2997, 214528), (3352, 191808), (3456, 186036), (3552, 181008), (3771, 170496), (3996, 160896), (4608, 139527), (4736, 135756), (5028, 127872), (5184, 124024), (5328, 120672), (5994, 107264), (6704, 95904), (6912, 93018), (7104, 90504), (7542, 85248), (7992, 80448), (9472, 67878), (10056, 63936), (10368, 62012), (10656, 60336), (11313, 56832), (11988, 53632), (13408, 47952), (13824, 46509), (14208, 45252), (15084, 42624), (15503, 41472), (15984, 40224), (18944, 33939), (20112, 31968), (20736, 31006), (21312, 30168), (22626, 28416), (23976, 26816)]