20512128

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{587}}^1$

素因数の和:624

約数の個数: 128

約数和(自身を含む): 67173120

約数和(自身を除く): 46660992

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 32, 39, 42, 48, 52, 56, 64, 78, 84, 91, 96, 104, 112, 128, 156, 168, 182, 192, 208, 224, 273, 312, 336, 364, 384, 416, 448, 546, 587, 624, 672, 728, 832, 896, 1092, 1174, 1248, 1344, 1456, 1664, 1761, 2184, 2348, 2496, 2688, 2912, 3522, 4109, 4368, 4696, 4992, 5824, 7044, 7631, 8218, 8736, 9392, 11648, 12327, 14088, 15262, 16436, 17472, 18784, 22893, 24654, 28176, 30524, 32872, 34944, 37568, 45786, 49308, 53417, 56352, 61048, 65744, 75136, 91572, 98616, 106834, 112704, 122096, 131488, 160251, 183144, 197232, 213668, 225408, 244192, 262976, 320502, 366288, 394464, 427336, 488384, 525952, 641004, 732576, 788928, 854672, 976768, 1282008, 1465152, 1577856, 1709344, 2564016, 2930304, 3418688, 5128032, 6837376, 10256064, 20512128]

約数ペア:

[(1, 20512128), (2, 10256064), (3, 6837376), (4, 5128032), (6, 3418688), (7, 2930304), (8, 2564016), (12, 1709344), (13, 1577856), (14, 1465152), (16, 1282008), (21, 976768), (24, 854672), (26, 788928), (28, 732576), (32, 641004), (39, 525952), (42, 488384), (48, 427336), (52, 394464), (56, 366288), (64, 320502), (78, 262976), (84, 244192), (91, 225408), (96, 213668), (104, 197232), (112, 183144), (128, 160251), (156, 131488), (168, 122096), (182, 112704), (192, 106834), (208, 98616), (224, 91572), (273, 75136), (312, 65744), (336, 61048), (364, 56352), (384, 53417), (416, 49308), (448, 45786), (546, 37568), (587, 34944), (624, 32872), (672, 30524), (728, 28176), (832, 24654), (896, 22893), (1092, 18784), (1174, 17472), (1248, 16436), (1344, 15262), (1456, 14088), (1664, 12327), (1761, 11648), (2184, 9392), (2348, 8736), (2496, 8218), (2688, 7631), (2912, 7044), (3522, 5824), (4109, 4992), (4368, 4696)]