64452640

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{8221}}^1$

素因数の和:8250

約数の個数: 72

約数和(自身を含む): 177151212

約数和(自身を除く): 112698572

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 8221, 16442, 32884, 41105, 57547, 65768, 82210, 115094, 131536, 164420, 230188, 263072, 287735, 328840, 402829, 460376, 575470, 657680, 805658, 920752, 1150940, 1315360, 1611316, 1841504, 2014145, 2301880, 3222632, 4028290, 4603760, 6445264, 8056580, 9207520, 12890528, 16113160, 32226320, 64452640]

約数ペア:

[(1, 64452640), (2, 32226320), (4, 16113160), (5, 12890528), (7, 9207520), (8, 8056580), (10, 6445264), (14, 4603760), (16, 4028290), (20, 3222632), (28, 2301880), (32, 2014145), (35, 1841504), (40, 1611316), (49, 1315360), (56, 1150940), (70, 920752), (80, 805658), (98, 657680), (112, 575470), (140, 460376), (160, 402829), (196, 328840), (224, 287735), (245, 263072), (280, 230188), (392, 164420), (490, 131536), (560, 115094), (784, 82210), (980, 65768), (1120, 57547), (1568, 41105), (1960, 32884), (3920, 16442), (7840, 8221)]