20648889352

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{281}}^1\times {\mathrm{523}}^1$

素因数の和:1023

約数の個数: 128

約数和(自身を含む): 48160546560

約数和(自身を除く): 27511657208

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 193, 281, 364, 386, 523, 562, 728, 772, 1046, 1124, 1351, 1544, 1967, 2092, 2248, 2509, 2702, 3653, 3661, 3934, 4184, 5018, 5404, 6799, 7306, 7322, 7868, 10036, 10808, 13598, 14612, 14644, 15736, 17563, 20072, 25571, 27196, 29224, 29288, 35126, 47593, 51142, 54233, 54392, 70252, 95186, 100939, 102284, 108466, 140504, 146963, 190372, 201878, 204568, 216932, 293926, 379631, 380744, 403756, 433864, 587852, 705029, 706573, 759262, 807512, 1028741, 1175704, 1312207, 1410058, 1413146, 1518524, 1910519, 2057482, 2624414, 2820116, 2826292, 3037048, 3821038, 4114964, 4935203, 5248828, 5640232, 5652584, 7642076, 8229928, 9185449, 9870406, 10497656, 13373633, 15284152, 18370898, 19740812, 26747266, 28363859, 36741796, 39481624, 53494532, 56727718, 73483592, 106989064, 113455436, 198547013, 226910872, 368730167, 397094026, 737460334, 794188052, 1474920668, 1588376104, 2581111169, 2949841336, 5162222338, 10324444676, 20648889352]

約数ペア:

[(1, 20648889352), (2, 10324444676), (4, 5162222338), (7, 2949841336), (8, 2581111169), (13, 1588376104), (14, 1474920668), (26, 794188052), (28, 737460334), (52, 397094026), (56, 368730167), (91, 226910872), (104, 198547013), (182, 113455436), (193, 106989064), (281, 73483592), (364, 56727718), (386, 53494532), (523, 39481624), (562, 36741796), (728, 28363859), (772, 26747266), (1046, 19740812), (1124, 18370898), (1351, 15284152), (1544, 13373633), (1967, 10497656), (2092, 9870406), (2248, 9185449), (2509, 8229928), (2702, 7642076), (3653, 5652584), (3661, 5640232), (3934, 5248828), (4184, 4935203), (5018, 4114964), (5404, 3821038), (6799, 3037048), (7306, 2826292), (7322, 2820116), (7868, 2624414), (10036, 2057482), (10808, 1910519), (13598, 1518524), (14612, 1413146), (14644, 1410058), (15736, 1312207), (17563, 1175704), (20072, 1028741), (25571, 807512), (27196, 759262), (29224, 706573), (29288, 705029), (35126, 587852), (47593, 433864), (51142, 403756), (54233, 380744), (54392, 379631), (70252, 293926), (95186, 216932), (100939, 204568), (102284, 201878), (108466, 190372), (140504, 146963)]