20564856

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1$

素因数の和:325

約数の個数: 96

約数和(自身を含む): 60802560

約数和(自身を除く): 40237704

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 127, 156, 173, 234, 254, 312, 346, 381, 468, 508, 519, 692, 762, 936, 1016, 1038, 1143, 1384, 1524, 1557, 1651, 2076, 2249, 2286, 3048, 3114, 3302, 4152, 4498, 4572, 4953, 6228, 6604, 6747, 8996, 9144, 9906, 12456, 13208, 13494, 14859, 17992, 19812, 20241, 21971, 26988, 29718, 39624, 40482, 43942, 53976, 59436, 65913, 80964, 87884, 118872, 131826, 161928, 175768, 197739, 263652, 285623, 395478, 527304, 571246, 790956, 856869, 1142492, 1581912, 1713738, 2284984, 2570607, 3427476, 5141214, 6854952, 10282428, 20564856]

約数ペア:

[(1, 20564856), (2, 10282428), (3, 6854952), (4, 5141214), (6, 3427476), (8, 2570607), (9, 2284984), (12, 1713738), (13, 1581912), (18, 1142492), (24, 856869), (26, 790956), (36, 571246), (39, 527304), (52, 395478), (72, 285623), (78, 263652), (104, 197739), (117, 175768), (127, 161928), (156, 131826), (173, 118872), (234, 87884), (254, 80964), (312, 65913), (346, 59436), (381, 53976), (468, 43942), (508, 40482), (519, 39624), (692, 29718), (762, 26988), (936, 21971), (1016, 20241), (1038, 19812), (1143, 17992), (1384, 14859), (1524, 13494), (1557, 13208), (1651, 12456), (2076, 9906), (2249, 9144), (2286, 8996), (3048, 6747), (3114, 6604), (3302, 6228), (4152, 4953), (4498, 4572)]