81705216

素因数分解:

$2^8\times 3^1\times {\mathrm{191}}^1\times {\mathrm{557}}^1$

素因数の和:767

約数の個数: 72

約数和(自身を含む): 218985984

約数和(自身を除く): 137280768

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 191, 192, 256, 382, 384, 557, 573, 764, 768, 1114, 1146, 1528, 1671, 2228, 2292, 3056, 3342, 4456, 4584, 6112, 6684, 8912, 9168, 12224, 13368, 17824, 18336, 24448, 26736, 35648, 36672, 48896, 53472, 71296, 73344, 106387, 106944, 142592, 146688, 212774, 213888, 319161, 425548, 427776, 638322, 851096, 1276644, 1702192, 2553288, 3404384, 5106576, 6808768, 10213152, 13617536, 20426304, 27235072, 40852608, 81705216]

約数ペア:

[(1, 81705216), (2, 40852608), (3, 27235072), (4, 20426304), (6, 13617536), (8, 10213152), (12, 6808768), (16, 5106576), (24, 3404384), (32, 2553288), (48, 1702192), (64, 1276644), (96, 851096), (128, 638322), (191, 427776), (192, 425548), (256, 319161), (382, 213888), (384, 212774), (557, 146688), (573, 142592), (764, 106944), (768, 106387), (1114, 73344), (1146, 71296), (1528, 53472), (1671, 48896), (2228, 36672), (2292, 35648), (3056, 26736), (3342, 24448), (4456, 18336), (4584, 17824), (6112, 13368), (6684, 12224), (8912, 9168)]