21061008640

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{2350559}}^1$

素因数の和:2350587

約数の個数: 72

約数和(自身を含む): 57654535680

約数和(自身を除く): 36593527040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 4480, 8960, 2350559, 4701118, 9402236, 11752795, 16453913, 18804472, 23505590, 32907826, 37608944, 47011180, 65815652, 75217888, 82269565, 94022360, 131631304, 150435776, 164539130, 188044720, 263262608, 300871552, 329078260, 376089440, 526525216, 601743104, 658156520, 752178880, 1053050432, 1316313040, 1504357760, 2106100864, 2632626080, 3008715520, 4212201728, 5265252160, 10530504320, 21061008640]

約数ペア:

[(1, 21061008640), (2, 10530504320), (4, 5265252160), (5, 4212201728), (7, 3008715520), (8, 2632626080), (10, 2106100864), (14, 1504357760), (16, 1316313040), (20, 1053050432), (28, 752178880), (32, 658156520), (35, 601743104), (40, 526525216), (56, 376089440), (64, 329078260), (70, 300871552), (80, 263262608), (112, 188044720), (128, 164539130), (140, 150435776), (160, 131631304), (224, 94022360), (256, 82269565), (280, 75217888), (320, 65815652), (448, 47011180), (560, 37608944), (640, 32907826), (896, 23505590), (1120, 18804472), (1280, 16453913), (1792, 11752795), (2240, 9402236), (4480, 4701118), (8960, 2350559)]