640530864

素因数分解:

$2^4\times 3^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:220

約数の個数: 240

約数和(自身を含む): 1974248640

約数和(自身を除く): 1333717776

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 36, 41, 46, 48, 53, 69, 72, 82, 89, 92, 106, 123, 138, 144, 159, 164, 178, 184, 207, 212, 246, 267, 276, 318, 328, 356, 368, 369, 414, 424, 477, 492, 534, 552, 636, 656, 712, 738, 801, 828, 848, 943, 954, 984, 1068, 1104, 1219, 1272, 1424, 1476, 1602, 1656, 1886, 1908, 1968, 2047, 2136, 2173, 2438, 2544, 2829, 2952, 3204, 3312, 3649, 3657, 3772, 3816, 4094, 4272, 4346, 4717, 4876, 5658, 5904, 6141, 6408, 6519, 7298, 7314, 7544, 7632, 8188, 8487, 8692, 9434, 9752, 10947, 10971, 11316, 12282, 12816, 13038, 14151, 14596, 14628, 15088, 16376, 16974, 17384, 18423, 18868, 19504, 19557, 21894, 21942, 22632, 24564, 26076, 28302, 29192, 29256, 32752, 32841, 33948, 34768, 36846, 37736, 39114, 42453, 43788, 43884, 45264, 49128, 49979, 52152, 56604, 58384, 58512, 65682, 67896, 73692, 75472, 78228, 83927, 84906, 87576, 87768, 98256, 99958, 104304, 108491, 113208, 131364, 135792, 147384, 149937, 156456, 167854, 169812, 175152, 175536, 193397, 199916, 216982, 226416, 251781, 262728, 294768, 299874, 312912, 325473, 335708, 339624, 386794, 399832, 433964, 449811, 503562, 525456, 580191, 599748, 650946, 671416, 679248, 755343, 773588, 799664, 867928, 899622, 976419, 1007124, 1160382, 1199496, 1301892, 1342832, 1510686, 1547176, 1735856, 1740573, 1799244, 1952838, 2014248, 2320764, 2398992, 2603784, 3021372, 3094352, 3481146, 3598488, 3905676, 4028496, 4448131, 4641528, 5207568, 6042744, 6962292, 7196976, 7811352, 8896262, 9283056, 12085488, 13344393, 13924584, 15622704, 17792524, 26688786, 27849168, 35585048, 40033179, 53377572, 71170096, 80066358, 106755144, 160132716, 213510288, 320265432, 640530864]

約数ペア:

[(1, 640530864), (2, 320265432), (3, 213510288), (4, 160132716), (6, 106755144), (8, 80066358), (9, 71170096), (12, 53377572), (16, 40033179), (18, 35585048), (23, 27849168), (24, 26688786), (36, 17792524), (41, 15622704), (46, 13924584), (48, 13344393), (53, 12085488), (69, 9283056), (72, 8896262), (82, 7811352), (89, 7196976), (92, 6962292), (106, 6042744), (123, 5207568), (138, 4641528), (144, 4448131), (159, 4028496), (164, 3905676), (178, 3598488), (184, 3481146), (207, 3094352), (212, 3021372), (246, 2603784), (267, 2398992), (276, 2320764), (318, 2014248), (328, 1952838), (356, 1799244), (368, 1740573), (369, 1735856), (414, 1547176), (424, 1510686), (477, 1342832), (492, 1301892), (534, 1199496), (552, 1160382), (636, 1007124), (656, 976419), (712, 899622), (738, 867928), (801, 799664), (828, 773588), (848, 755343), (943, 679248), (954, 671416), (984, 650946), (1068, 599748), (1104, 580191), (1219, 525456), (1272, 503562), (1424, 449811), (1476, 433964), (1602, 399832), (1656, 386794), (1886, 339624), (1908, 335708), (1968, 325473), (2047, 312912), (2136, 299874), (2173, 294768), (2438, 262728), (2544, 251781), (2829, 226416), (2952, 216982), (3204, 199916), (3312, 193397), (3649, 175536), (3657, 175152), (3772, 169812), (3816, 167854), (4094, 156456), (4272, 149937), (4346, 147384), (4717, 135792), (4876, 131364), (5658, 113208), (5904, 108491), (6141, 104304), (6408, 99958), (6519, 98256), (7298, 87768), (7314, 87576), (7544, 84906), (7632, 83927), (8188, 78228), (8487, 75472), (8692, 73692), (9434, 67896), (9752, 65682), (10947, 58512), (10971, 58384), (11316, 56604), (12282, 52152), (12816, 49979), (13038, 49128), (14151, 45264), (14596, 43884), (14628, 43788), (15088, 42453), (16376, 39114), (16974, 37736), (17384, 36846), (18423, 34768), (18868, 33948), (19504, 32841), (19557, 32752), (21894, 29256), (21942, 29192), (22632, 28302), (24564, 26076)]