81975040

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{1307}}^1$

素因数の和:1342

約数の個数: 108

約数和(自身を含む): 228588696

約数和(自身を除く): 146613656

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 560, 640, 784, 896, 980, 1120, 1280, 1307, 1568, 1792, 1960, 2240, 2614, 3136, 3920, 4480, 5228, 6272, 6535, 7840, 8960, 9149, 10456, 12544, 13070, 15680, 18298, 20912, 26140, 31360, 36596, 41824, 45745, 52280, 62720, 64043, 73192, 83648, 91490, 104560, 128086, 146384, 167296, 182980, 209120, 256172, 292768, 320215, 334592, 365960, 418240, 512344, 585536, 640430, 731920, 836480, 1024688, 1171072, 1280860, 1463840, 1672960, 2049376, 2342144, 2561720, 2927680, 4098752, 5123440, 5855360, 8197504, 10246880, 11710720, 16395008, 20493760, 40987520, 81975040]

約数ペア:

[(1, 81975040), (2, 40987520), (4, 20493760), (5, 16395008), (7, 11710720), (8, 10246880), (10, 8197504), (14, 5855360), (16, 5123440), (20, 4098752), (28, 2927680), (32, 2561720), (35, 2342144), (40, 2049376), (49, 1672960), (56, 1463840), (64, 1280860), (70, 1171072), (80, 1024688), (98, 836480), (112, 731920), (128, 640430), (140, 585536), (160, 512344), (196, 418240), (224, 365960), (245, 334592), (256, 320215), (280, 292768), (320, 256172), (392, 209120), (448, 182980), (490, 167296), (560, 146384), (640, 128086), (784, 104560), (896, 91490), (980, 83648), (1120, 73192), (1280, 64043), (1307, 62720), (1568, 52280), (1792, 45745), (1960, 41824), (2240, 36596), (2614, 31360), (3136, 26140), (3920, 20912), (4480, 18298), (5228, 15680), (6272, 13070), (6535, 12544), (7840, 10456), (8960, 9149)]