81307040

素因数分解:

$2^5\times 5^1\times {\mathrm{193}}^1\times {\mathrm{2633}}^1$

素因数の和:2841

約数の個数: 48

約数和(自身を含む): 193156488

約数和(自身を除く): 111849448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 193, 386, 772, 965, 1544, 1930, 2633, 3088, 3860, 5266, 6176, 7720, 10532, 13165, 15440, 21064, 26330, 30880, 42128, 52660, 84256, 105320, 210640, 421280, 508169, 1016338, 2032676, 2540845, 4065352, 5081690, 8130704, 10163380, 16261408, 20326760, 40653520, 81307040]

約数ペア:

[(1, 81307040), (2, 40653520), (4, 20326760), (5, 16261408), (8, 10163380), (10, 8130704), (16, 5081690), (20, 4065352), (32, 2540845), (40, 2032676), (80, 1016338), (160, 508169), (193, 421280), (386, 210640), (772, 105320), (965, 84256), (1544, 52660), (1930, 42128), (2633, 30880), (3088, 26330), (3860, 21064), (5266, 15440), (6176, 13165), (7720, 10532)]