20699264

素因数分解:

$2^7\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 44064000

約数和(自身を除く): 23364736

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 79, 89, 92, 128, 158, 178, 184, 316, 356, 368, 632, 712, 736, 1264, 1424, 1472, 1817, 2047, 2528, 2848, 2944, 3634, 4094, 5056, 5696, 7031, 7268, 8188, 10112, 11392, 14062, 14536, 16376, 28124, 29072, 32752, 56248, 58144, 65504, 112496, 116288, 131008, 161713, 224992, 232576, 262016, 323426, 449984, 646852, 899968, 1293704, 2587408, 5174816, 10349632, 20699264]

約数ペア:

[(1, 20699264), (2, 10349632), (4, 5174816), (8, 2587408), (16, 1293704), (23, 899968), (32, 646852), (46, 449984), (64, 323426), (79, 262016), (89, 232576), (92, 224992), (128, 161713), (158, 131008), (178, 116288), (184, 112496), (316, 65504), (356, 58144), (368, 56248), (632, 32752), (712, 29072), (736, 28124), (1264, 16376), (1424, 14536), (1472, 14062), (1817, 11392), (2047, 10112), (2528, 8188), (2848, 7268), (2944, 7031), (3634, 5696), (4094, 5056)]