648245640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:332

約数の個数: 256

約数和(自身を含む): 2308331520

約数和(自身を除く): 1660085880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 43, 56, 60, 70, 84, 86, 105, 120, 129, 131, 137, 140, 168, 172, 210, 215, 258, 262, 274, 280, 301, 344, 393, 411, 420, 430, 516, 524, 548, 602, 645, 655, 685, 786, 822, 840, 860, 903, 917, 959, 1032, 1048, 1096, 1204, 1290, 1310, 1370, 1505, 1572, 1644, 1720, 1806, 1834, 1918, 1965, 2055, 2408, 2580, 2620, 2740, 2751, 2877, 3010, 3144, 3288, 3612, 3668, 3836, 3930, 4110, 4515, 4585, 4795, 5160, 5240, 5480, 5502, 5633, 5754, 5891, 6020, 7224, 7336, 7672, 7860, 8220, 9030, 9170, 9590, 11004, 11266, 11508, 11782, 12040, 13755, 14385, 15720, 16440, 16899, 17673, 17947, 18060, 18340, 19180, 22008, 22532, 23016, 23564, 27510, 28165, 28770, 29455, 33798, 35346, 35894, 36120, 36680, 38360, 39431, 41237, 45064, 47128, 53841, 55020, 56330, 57540, 58910, 67596, 70692, 71788, 78862, 82474, 84495, 88365, 89735, 107682, 110040, 112660, 115080, 117820, 118293, 123711, 125629, 135192, 141384, 143576, 157724, 164948, 168990, 176730, 179470, 197155, 206185, 215364, 225320, 235640, 236586, 247422, 251258, 269205, 315448, 329896, 337980, 353460, 358940, 376887, 394310, 412370, 430728, 473172, 494844, 502516, 538410, 591465, 618555, 628145, 675960, 706920, 717880, 753774, 771721, 788620, 824740, 946344, 989688, 1005032, 1076820, 1182930, 1237110, 1256290, 1507548, 1543442, 1577240, 1649480, 1884435, 2153640, 2315163, 2365860, 2474220, 2512580, 3015096, 3086884, 3768870, 3858605, 4630326, 4731720, 4948440, 5025160, 5402047, 6173768, 7537740, 7717210, 9260652, 10804094, 11575815, 15075480, 15434420, 16206141, 18521304, 21608188, 23151630, 27010235, 30868840, 32412282, 43216376, 46303260, 54020470, 64824564, 81030705, 92606520, 108040940, 129649128, 162061410, 216081880, 324122820, 648245640]

約数ペア:

[(1, 648245640), (2, 324122820), (3, 216081880), (4, 162061410), (5, 129649128), (6, 108040940), (7, 92606520), (8, 81030705), (10, 64824564), (12, 54020470), (14, 46303260), (15, 43216376), (20, 32412282), (21, 30868840), (24, 27010235), (28, 23151630), (30, 21608188), (35, 18521304), (40, 16206141), (42, 15434420), (43, 15075480), (56, 11575815), (60, 10804094), (70, 9260652), (84, 7717210), (86, 7537740), (105, 6173768), (120, 5402047), (129, 5025160), (131, 4948440), (137, 4731720), (140, 4630326), (168, 3858605), (172, 3768870), (210, 3086884), (215, 3015096), (258, 2512580), (262, 2474220), (274, 2365860), (280, 2315163), (301, 2153640), (344, 1884435), (393, 1649480), (411, 1577240), (420, 1543442), (430, 1507548), (516, 1256290), (524, 1237110), (548, 1182930), (602, 1076820), (645, 1005032), (655, 989688), (685, 946344), (786, 824740), (822, 788620), (840, 771721), (860, 753774), (903, 717880), (917, 706920), (959, 675960), (1032, 628145), (1048, 618555), (1096, 591465), (1204, 538410), (1290, 502516), (1310, 494844), (1370, 473172), (1505, 430728), (1572, 412370), (1644, 394310), (1720, 376887), (1806, 358940), (1834, 353460), (1918, 337980), (1965, 329896), (2055, 315448), (2408, 269205), (2580, 251258), (2620, 247422), (2740, 236586), (2751, 235640), (2877, 225320), (3010, 215364), (3144, 206185), (3288, 197155), (3612, 179470), (3668, 176730), (3836, 168990), (3930, 164948), (4110, 157724), (4515, 143576), (4585, 141384), (4795, 135192), (5160, 125629), (5240, 123711), (5480, 118293), (5502, 117820), (5633, 115080), (5754, 112660), (5891, 110040), (6020, 107682), (7224, 89735), (7336, 88365), (7672, 84495), (7860, 82474), (8220, 78862), (9030, 71788), (9170, 70692), (9590, 67596), (11004, 58910), (11266, 57540), (11508, 56330), (11782, 55020), (12040, 53841), (13755, 47128), (14385, 45064), (15720, 41237), (16440, 39431), (16899, 38360), (17673, 36680), (17947, 36120), (18060, 35894), (18340, 35346), (19180, 33798), (22008, 29455), (22532, 28770), (23016, 28165), (23564, 27510)]