64400144

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{827}}^1$

素因数の和:1023

約数の個数: 40

約数和(自身を含む): 129777408

約数和(自身を除く): 65377264

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 157, 248, 314, 496, 628, 827, 1256, 1654, 2512, 3308, 4867, 6616, 9734, 13232, 19468, 25637, 38936, 51274, 77872, 102548, 129839, 205096, 259678, 410192, 519356, 1038712, 2077424, 4025009, 8050018, 16100036, 32200072, 64400144]

約数ペア:

[(1, 64400144), (2, 32200072), (4, 16100036), (8, 8050018), (16, 4025009), (31, 2077424), (62, 1038712), (124, 519356), (157, 410192), (248, 259678), (314, 205096), (496, 129839), (628, 102548), (827, 77872), (1256, 51274), (1654, 38936), (2512, 25637), (3308, 19468), (4867, 13232), (6616, 9734)]