20781478912

素因数分解:

$2^{10}\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{757}}^1$

素因数の和:896

約数の個数: 176

約数和(自身を含む): 46921170240

約数和(自身を除く): 26139691328

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 64, 68, 76, 83, 128, 136, 152, 166, 256, 272, 304, 323, 332, 512, 544, 608, 646, 664, 757, 1024, 1088, 1216, 1292, 1328, 1411, 1514, 1577, 2176, 2432, 2584, 2656, 2822, 3028, 3154, 4352, 4864, 5168, 5312, 5644, 6056, 6308, 8704, 9728, 10336, 10624, 11288, 12112, 12616, 12869, 14383, 17408, 19456, 20672, 21248, 22576, 24224, 25232, 25738, 26809, 28766, 41344, 42496, 45152, 48448, 50464, 51476, 53618, 57532, 62831, 82688, 84992, 90304, 96896, 100928, 102952, 107236, 115064, 125662, 165376, 180608, 193792, 201856, 205904, 214472, 230128, 244511, 251324, 330752, 361216, 387584, 403712, 411808, 428944, 460256, 489022, 502648, 722432, 775168, 807424, 823616, 857888, 920512, 978044, 1005296, 1068127, 1193789, 1444864, 1614848, 1647232, 1715776, 1841024, 1956088, 2010592, 2136254, 2387578, 3294464, 3431552, 3682048, 3912176, 4021184, 4272508, 4775156, 6588928, 6863104, 7364096, 7824352, 8042368, 8545016, 9550312, 13177856, 13726208, 14728192, 15648704, 16084736, 17090032, 19100624, 20294413, 27452416, 31297408, 32169472, 34180064, 38201248, 40588826, 62594816, 64338944, 68360128, 76402496, 81177652, 125189632, 136720256, 152804992, 162355304, 250379264, 273440512, 305609984, 324710608, 546881024, 611219968, 649421216, 1093762048, 1222439936, 1298842432, 2597684864, 5195369728, 10390739456, 20781478912]

約数ペア:

[(1, 20781478912), (2, 10390739456), (4, 5195369728), (8, 2597684864), (16, 1298842432), (17, 1222439936), (19, 1093762048), (32, 649421216), (34, 611219968), (38, 546881024), (64, 324710608), (68, 305609984), (76, 273440512), (83, 250379264), (128, 162355304), (136, 152804992), (152, 136720256), (166, 125189632), (256, 81177652), (272, 76402496), (304, 68360128), (323, 64338944), (332, 62594816), (512, 40588826), (544, 38201248), (608, 34180064), (646, 32169472), (664, 31297408), (757, 27452416), (1024, 20294413), (1088, 19100624), (1216, 17090032), (1292, 16084736), (1328, 15648704), (1411, 14728192), (1514, 13726208), (1577, 13177856), (2176, 9550312), (2432, 8545016), (2584, 8042368), (2656, 7824352), (2822, 7364096), (3028, 6863104), (3154, 6588928), (4352, 4775156), (4864, 4272508), (5168, 4021184), (5312, 3912176), (5644, 3682048), (6056, 3431552), (6308, 3294464), (8704, 2387578), (9728, 2136254), (10336, 2010592), (10624, 1956088), (11288, 1841024), (12112, 1715776), (12616, 1647232), (12869, 1614848), (14383, 1444864), (17408, 1193789), (19456, 1068127), (20672, 1005296), (21248, 978044), (22576, 920512), (24224, 857888), (25232, 823616), (25738, 807424), (26809, 775168), (28766, 722432), (41344, 502648), (42496, 489022), (45152, 460256), (48448, 428944), (50464, 411808), (51476, 403712), (53618, 387584), (57532, 361216), (62831, 330752), (82688, 251324), (84992, 244511), (90304, 230128), (96896, 214472), (100928, 205904), (102952, 201856), (107236, 193792), (115064, 180608), (125662, 165376)]