81413584

素因数分解:

$2^4\times 7^1\times {\mathrm{397}}^1\times {\mathrm{1831}}^1$

素因数の和:2243

約数の個数: 40

約数和(自身を含む): 180825728

約数和(自身を除く): 99412144

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 397, 794, 1588, 1831, 2779, 3176, 3662, 5558, 6352, 7324, 11116, 12817, 14648, 22232, 25634, 29296, 44464, 51268, 102536, 205072, 726907, 1453814, 2907628, 5088349, 5815256, 10176698, 11630512, 20353396, 40706792, 81413584]

約数ペア:

[(1, 81413584), (2, 40706792), (4, 20353396), (7, 11630512), (8, 10176698), (14, 5815256), (16, 5088349), (28, 2907628), (56, 1453814), (112, 726907), (397, 205072), (794, 102536), (1588, 51268), (1831, 44464), (2779, 29296), (3176, 25634), (3662, 22232), (5558, 14648), (6352, 12817), (7324, 11116)]