640913472

素因数分解:

$2^6\times 3^7\times {\mathrm{19}}^1\times {\mathrm{241}}^1$

素因数の和:293

約数の個数: 224

約数和(自身を含む): 2016150400

約数和(自身を除く): 1375236928

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 27, 32, 36, 38, 48, 54, 57, 64, 72, 76, 81, 96, 108, 114, 144, 152, 162, 171, 192, 216, 228, 241, 243, 288, 304, 324, 342, 432, 456, 482, 486, 513, 576, 608, 648, 684, 723, 729, 864, 912, 964, 972, 1026, 1216, 1296, 1368, 1446, 1458, 1539, 1728, 1824, 1928, 1944, 2052, 2169, 2187, 2592, 2736, 2892, 2916, 3078, 3648, 3856, 3888, 4104, 4338, 4374, 4579, 4617, 5184, 5472, 5784, 5832, 6156, 6507, 7712, 7776, 8208, 8676, 8748, 9158, 9234, 10944, 11568, 11664, 12312, 13014, 13737, 13851, 15424, 15552, 16416, 17352, 17496, 18316, 18468, 19521, 23136, 23328, 24624, 26028, 27474, 27702, 32832, 34704, 34992, 36632, 36936, 39042, 41211, 41553, 46272, 46656, 49248, 52056, 54948, 55404, 58563, 69408, 69984, 73264, 73872, 78084, 82422, 83106, 98496, 104112, 109896, 110808, 117126, 123633, 138816, 139968, 146528, 147744, 156168, 164844, 166212, 175689, 208224, 219792, 221616, 234252, 247266, 293056, 295488, 312336, 329688, 332424, 351378, 370899, 416448, 439584, 443232, 468504, 494532, 527067, 624672, 659376, 664848, 702756, 741798, 879168, 886464, 937008, 989064, 1054134, 1112697, 1249344, 1318752, 1329696, 1405512, 1483596, 1874016, 1978128, 2108268, 2225394, 2637504, 2659392, 2811024, 2967192, 3338091, 3748032, 3956256, 4216536, 4450788, 5622048, 5934384, 6676182, 7912512, 8433072, 8901576, 10014273, 11244096, 11868768, 13352364, 16866144, 17803152, 20028546, 23737536, 26704728, 33732288, 35606304, 40057092, 53409456, 71212608, 80114184, 106818912, 160228368, 213637824, 320456736, 640913472]

約数ペア:

[(1, 640913472), (2, 320456736), (3, 213637824), (4, 160228368), (6, 106818912), (8, 80114184), (9, 71212608), (12, 53409456), (16, 40057092), (18, 35606304), (19, 33732288), (24, 26704728), (27, 23737536), (32, 20028546), (36, 17803152), (38, 16866144), (48, 13352364), (54, 11868768), (57, 11244096), (64, 10014273), (72, 8901576), (76, 8433072), (81, 7912512), (96, 6676182), (108, 5934384), (114, 5622048), (144, 4450788), (152, 4216536), (162, 3956256), (171, 3748032), (192, 3338091), (216, 2967192), (228, 2811024), (241, 2659392), (243, 2637504), (288, 2225394), (304, 2108268), (324, 1978128), (342, 1874016), (432, 1483596), (456, 1405512), (482, 1329696), (486, 1318752), (513, 1249344), (576, 1112697), (608, 1054134), (648, 989064), (684, 937008), (723, 886464), (729, 879168), (864, 741798), (912, 702756), (964, 664848), (972, 659376), (1026, 624672), (1216, 527067), (1296, 494532), (1368, 468504), (1446, 443232), (1458, 439584), (1539, 416448), (1728, 370899), (1824, 351378), (1928, 332424), (1944, 329688), (2052, 312336), (2169, 295488), (2187, 293056), (2592, 247266), (2736, 234252), (2892, 221616), (2916, 219792), (3078, 208224), (3648, 175689), (3856, 166212), (3888, 164844), (4104, 156168), (4338, 147744), (4374, 146528), (4579, 139968), (4617, 138816), (5184, 123633), (5472, 117126), (5784, 110808), (5832, 109896), (6156, 104112), (6507, 98496), (7712, 83106), (7776, 82422), (8208, 78084), (8676, 73872), (8748, 73264), (9158, 69984), (9234, 69408), (10944, 58563), (11568, 55404), (11664, 54948), (12312, 52056), (13014, 49248), (13737, 46656), (13851, 46272), (15424, 41553), (15552, 41211), (16416, 39042), (17352, 36936), (17496, 36632), (18316, 34992), (18468, 34704), (19521, 32832), (23136, 27702), (23328, 27474), (24624, 26028)]