17911250

素因数分解:

$2^1\times 5^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:141

約数の個数: 80

約数和(自身を含む): 40487040

約数和(自身を除く): 22575790

約数列:

[1, 2, 5, 7, 10, 14, 23, 25, 35, 46, 50, 70, 89, 115, 125, 161, 175, 178, 230, 250, 322, 350, 445, 575, 623, 625, 805, 875, 890, 1150, 1246, 1250, 1610, 1750, 2047, 2225, 2875, 3115, 4025, 4094, 4375, 4450, 5750, 6230, 8050, 8750, 10235, 11125, 14329, 14375, 15575, 20125, 20470, 22250, 28658, 28750, 31150, 40250, 51175, 55625, 71645, 77875, 100625, 102350, 111250, 143290, 155750, 201250, 255875, 358225, 389375, 511750, 716450, 778750, 1279375, 1791125, 2558750, 3582250, 8955625, 17911250]

約数ペア:

[(1, 17911250), (2, 8955625), (5, 3582250), (7, 2558750), (10, 1791125), (14, 1279375), (23, 778750), (25, 716450), (35, 511750), (46, 389375), (50, 358225), (70, 255875), (89, 201250), (115, 155750), (125, 143290), (161, 111250), (175, 102350), (178, 100625), (230, 77875), (250, 71645), (322, 55625), (350, 51175), (445, 40250), (575, 31150), (623, 28750), (625, 28658), (805, 22250), (875, 20470), (890, 20125), (1150, 15575), (1246, 14375), (1250, 14329), (1610, 11125), (1750, 10235), (2047, 8750), (2225, 8050), (2875, 6230), (3115, 5750), (4025, 4450), (4094, 4375)]