20254904

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:180

約数の個数: 64

約数和(自身を含む): 42301440

約数和(自身を除く): 22046536

約数列:

[1, 2, 4, 8, 23, 31, 46, 53, 62, 67, 92, 106, 124, 134, 184, 212, 248, 268, 424, 536, 713, 1219, 1426, 1541, 1643, 2077, 2438, 2852, 3082, 3286, 3551, 4154, 4876, 5704, 6164, 6572, 7102, 8308, 9752, 12328, 13144, 14204, 16616, 28408, 37789, 47771, 75578, 81673, 95542, 110081, 151156, 163346, 191084, 220162, 302312, 326692, 382168, 440324, 653384, 880648, 2531863, 5063726, 10127452, 20254904]

約数ペア:

[(1, 20254904), (2, 10127452), (4, 5063726), (8, 2531863), (23, 880648), (31, 653384), (46, 440324), (53, 382168), (62, 326692), (67, 302312), (92, 220162), (106, 191084), (124, 163346), (134, 151156), (184, 110081), (212, 95542), (248, 81673), (268, 75578), (424, 47771), (536, 37789), (713, 28408), (1219, 16616), (1426, 14204), (1541, 13144), (1643, 12328), (2077, 9752), (2438, 8308), (2852, 7102), (3082, 6572), (3286, 6164), (3551, 5704), (4154, 4876)]