1578123456

素因数分解:

$2^6\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2203}}^1$

素因数の和:2279

約数の個数: 224

約数和(自身を含む): 5266748928

約数和(自身を除く): 3688625472

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 32, 39, 41, 42, 48, 52, 56, 64, 78, 82, 84, 91, 96, 104, 112, 123, 156, 164, 168, 182, 192, 208, 224, 246, 273, 287, 312, 328, 336, 364, 416, 448, 492, 533, 546, 574, 624, 656, 672, 728, 832, 861, 984, 1066, 1092, 1148, 1248, 1312, 1344, 1456, 1599, 1722, 1968, 2132, 2184, 2203, 2296, 2496, 2624, 2912, 3198, 3444, 3731, 3936, 4264, 4368, 4406, 4592, 5824, 6396, 6609, 6888, 7462, 7872, 8528, 8736, 8812, 9184, 11193, 12792, 13218, 13776, 14924, 15421, 17056, 17472, 17624, 18368, 22386, 25584, 26436, 27552, 28639, 29848, 30842, 34112, 35248, 44772, 46263, 51168, 52872, 55104, 57278, 59696, 61684, 70496, 85917, 89544, 90323, 92526, 102336, 105744, 114556, 119392, 123368, 140992, 171834, 179088, 180646, 185052, 200473, 211488, 229112, 238784, 246736, 270969, 343668, 358176, 361292, 370104, 400946, 422976, 458224, 493472, 541938, 601419, 632261, 687336, 716352, 722584, 740208, 801892, 916448, 986944, 1083876, 1174199, 1202838, 1264522, 1374672, 1445168, 1480416, 1603784, 1832896, 1896783, 2167752, 2348398, 2405676, 2529044, 2749344, 2890336, 2960832, 3207568, 3522597, 3793566, 4335504, 4696796, 4811352, 5058088, 5498688, 5780672, 6415136, 7045194, 7587132, 8219393, 8671008, 9393592, 9622704, 10116176, 12830272, 14090388, 15174264, 16438786, 17342016, 18787184, 19245408, 20232352, 24658179, 28180776, 30348528, 32877572, 37574368, 38490816, 40464704, 49316358, 56361552, 60697056, 65755144, 75148736, 98632716, 112723104, 121394112, 131510288, 197265432, 225446208, 263020576, 394530864, 526041152, 789061728, 1578123456]

約数ペア:

[(1, 1578123456), (2, 789061728), (3, 526041152), (4, 394530864), (6, 263020576), (7, 225446208), (8, 197265432), (12, 131510288), (13, 121394112), (14, 112723104), (16, 98632716), (21, 75148736), (24, 65755144), (26, 60697056), (28, 56361552), (32, 49316358), (39, 40464704), (41, 38490816), (42, 37574368), (48, 32877572), (52, 30348528), (56, 28180776), (64, 24658179), (78, 20232352), (82, 19245408), (84, 18787184), (91, 17342016), (96, 16438786), (104, 15174264), (112, 14090388), (123, 12830272), (156, 10116176), (164, 9622704), (168, 9393592), (182, 8671008), (192, 8219393), (208, 7587132), (224, 7045194), (246, 6415136), (273, 5780672), (287, 5498688), (312, 5058088), (328, 4811352), (336, 4696796), (364, 4335504), (416, 3793566), (448, 3522597), (492, 3207568), (533, 2960832), (546, 2890336), (574, 2749344), (624, 2529044), (656, 2405676), (672, 2348398), (728, 2167752), (832, 1896783), (861, 1832896), (984, 1603784), (1066, 1480416), (1092, 1445168), (1148, 1374672), (1248, 1264522), (1312, 1202838), (1344, 1174199), (1456, 1083876), (1599, 986944), (1722, 916448), (1968, 801892), (2132, 740208), (2184, 722584), (2203, 716352), (2296, 687336), (2496, 632261), (2624, 601419), (2912, 541938), (3198, 493472), (3444, 458224), (3731, 422976), (3936, 400946), (4264, 370104), (4368, 361292), (4406, 358176), (4592, 343668), (5824, 270969), (6396, 246736), (6609, 238784), (6888, 229112), (7462, 211488), (7872, 200473), (8528, 185052), (8736, 180646), (8812, 179088), (9184, 171834), (11193, 140992), (12792, 123368), (13218, 119392), (13776, 114556), (14924, 105744), (15421, 102336), (17056, 92526), (17472, 90323), (17624, 89544), (18368, 85917), (22386, 70496), (25584, 61684), (26436, 59696), (27552, 57278), (28639, 55104), (29848, 52872), (30842, 51168), (34112, 46263), (35248, 44772)]