639874080

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{509}}^1$

素因数の和:633

約数の個数: 240

約数和(自身を含む): 2285985240

約数和(自身を除く): 1646111160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 97, 108, 120, 135, 144, 160, 162, 180, 194, 216, 240, 270, 288, 291, 324, 360, 388, 405, 432, 480, 485, 509, 540, 582, 648, 720, 776, 810, 864, 873, 970, 1018, 1080, 1164, 1296, 1440, 1455, 1527, 1552, 1620, 1746, 1940, 2036, 2160, 2328, 2545, 2592, 2619, 2910, 3054, 3104, 3240, 3492, 3880, 4072, 4320, 4365, 4581, 4656, 5090, 5238, 5820, 6108, 6480, 6984, 7635, 7760, 7857, 8144, 8730, 9162, 9312, 10180, 10476, 11640, 12216, 12960, 13095, 13743, 13968, 15270, 15520, 15714, 16288, 17460, 18324, 20360, 20952, 22905, 23280, 24432, 26190, 27486, 27936, 30540, 31428, 34920, 36648, 39285, 40720, 41229, 41904, 45810, 46560, 48864, 49373, 52380, 54972, 61080, 62856, 68715, 69840, 73296, 78570, 81440, 82458, 83808, 91620, 98746, 104760, 109944, 122160, 125712, 137430, 139680, 146592, 148119, 157140, 164916, 183240, 197492, 206145, 209520, 219888, 244320, 246865, 251424, 274860, 296238, 314280, 329832, 366480, 394984, 412290, 419040, 439776, 444357, 493730, 549720, 592476, 628560, 659664, 732960, 740595, 789968, 824580, 888714, 987460, 1099440, 1184952, 1257120, 1319328, 1333071, 1481190, 1579936, 1649160, 1777428, 1974920, 2198880, 2221785, 2369904, 2666142, 2962380, 3298320, 3554856, 3949840, 3999213, 4443570, 4739808, 5332284, 5924760, 6596640, 6665355, 7109712, 7899680, 7998426, 8887140, 10664568, 11849520, 13330710, 14219424, 15996852, 17774280, 19996065, 21329136, 23699040, 26661420, 31993704, 35548560, 39992130, 42658272, 53322840, 63987408, 71097120, 79984260, 106645680, 127974816, 159968520, 213291360, 319937040, 639874080]

約数ペア:

[(1, 639874080), (2, 319937040), (3, 213291360), (4, 159968520), (5, 127974816), (6, 106645680), (8, 79984260), (9, 71097120), (10, 63987408), (12, 53322840), (15, 42658272), (16, 39992130), (18, 35548560), (20, 31993704), (24, 26661420), (27, 23699040), (30, 21329136), (32, 19996065), (36, 17774280), (40, 15996852), (45, 14219424), (48, 13330710), (54, 11849520), (60, 10664568), (72, 8887140), (80, 7998426), (81, 7899680), (90, 7109712), (96, 6665355), (97, 6596640), (108, 5924760), (120, 5332284), (135, 4739808), (144, 4443570), (160, 3999213), (162, 3949840), (180, 3554856), (194, 3298320), (216, 2962380), (240, 2666142), (270, 2369904), (288, 2221785), (291, 2198880), (324, 1974920), (360, 1777428), (388, 1649160), (405, 1579936), (432, 1481190), (480, 1333071), (485, 1319328), (509, 1257120), (540, 1184952), (582, 1099440), (648, 987460), (720, 888714), (776, 824580), (810, 789968), (864, 740595), (873, 732960), (970, 659664), (1018, 628560), (1080, 592476), (1164, 549720), (1296, 493730), (1440, 444357), (1455, 439776), (1527, 419040), (1552, 412290), (1620, 394984), (1746, 366480), (1940, 329832), (2036, 314280), (2160, 296238), (2328, 274860), (2545, 251424), (2592, 246865), (2619, 244320), (2910, 219888), (3054, 209520), (3104, 206145), (3240, 197492), (3492, 183240), (3880, 164916), (4072, 157140), (4320, 148119), (4365, 146592), (4581, 139680), (4656, 137430), (5090, 125712), (5238, 122160), (5820, 109944), (6108, 104760), (6480, 98746), (6984, 91620), (7635, 83808), (7760, 82458), (7857, 81440), (8144, 78570), (8730, 73296), (9162, 69840), (9312, 68715), (10180, 62856), (10476, 61080), (11640, 54972), (12216, 52380), (12960, 49373), (13095, 48864), (13743, 46560), (13968, 45810), (15270, 41904), (15520, 41229), (15714, 40720), (16288, 39285), (17460, 36648), (18324, 34920), (20360, 31428), (20952, 30540), (22905, 27936), (23280, 27486), (24432, 26190)]