81803008

素因数分解:

$2^8\times 7^1\times {\mathrm{191}}^1\times {\mathrm{239}}^1$

素因数の和:453

約数の個数: 72

約数和(自身を含む): 188375040

約数和(自身を除く): 106572032

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 191, 224, 239, 256, 382, 448, 478, 764, 896, 956, 1337, 1528, 1673, 1792, 1912, 2674, 3056, 3346, 3824, 5348, 6112, 6692, 7648, 10696, 12224, 13384, 15296, 21392, 24448, 26768, 30592, 42784, 45649, 48896, 53536, 61184, 85568, 91298, 107072, 171136, 182596, 214144, 319543, 342272, 365192, 428288, 639086, 730384, 1278172, 1460768, 2556344, 2921536, 5112688, 5843072, 10225376, 11686144, 20450752, 40901504, 81803008]

約数ペア:

[(1, 81803008), (2, 40901504), (4, 20450752), (7, 11686144), (8, 10225376), (14, 5843072), (16, 5112688), (28, 2921536), (32, 2556344), (56, 1460768), (64, 1278172), (112, 730384), (128, 639086), (191, 428288), (224, 365192), (239, 342272), (256, 319543), (382, 214144), (448, 182596), (478, 171136), (764, 107072), (896, 91298), (956, 85568), (1337, 61184), (1528, 53536), (1673, 48896), (1792, 45649), (1912, 42784), (2674, 30592), (3056, 26768), (3346, 24448), (3824, 21392), (5348, 15296), (6112, 13384), (6692, 12224), (7648, 10696)]