155665720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{523}}^1\times {\mathrm{1063}}^1$

素因数の和:1604

約数の個数: 64

約数和(自身を含む): 401425920

約数和(自身を除く): 245760200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 523, 1046, 1063, 2092, 2126, 2615, 3661, 4184, 4252, 5230, 5315, 7322, 7441, 8504, 10460, 10630, 14644, 14882, 18305, 20920, 21260, 29288, 29764, 36610, 37205, 42520, 59528, 73220, 74410, 146440, 148820, 297640, 555949, 1111898, 2223796, 2779745, 3891643, 4447592, 5559490, 7783286, 11118980, 15566572, 19458215, 22237960, 31133144, 38916430, 77832860, 155665720]

約数ペア:

[(1, 155665720), (2, 77832860), (4, 38916430), (5, 31133144), (7, 22237960), (8, 19458215), (10, 15566572), (14, 11118980), (20, 7783286), (28, 5559490), (35, 4447592), (40, 3891643), (56, 2779745), (70, 2223796), (140, 1111898), (280, 555949), (523, 297640), (1046, 148820), (1063, 146440), (2092, 74410), (2126, 73220), (2615, 59528), (3661, 42520), (4184, 37205), (4252, 36610), (5230, 29764), (5315, 29288), (7322, 21260), (7441, 20920), (8504, 18305), (10460, 14882), (10630, 14644)]