71721160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{256147}}^1$

素因数の和:256165

約数の個数: 32

約数和(自身を含む): 184426560

約数和(自身を除く): 112705400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 256147, 512294, 1024588, 1280735, 1793029, 2049176, 2561470, 3586058, 5122940, 7172116, 8965145, 10245880, 14344232, 17930290, 35860580, 71721160]

約数ペア:

[(1, 71721160), (2, 35860580), (4, 17930290), (5, 14344232), (7, 10245880), (8, 8965145), (10, 7172116), (14, 5122940), (20, 3586058), (28, 2561470), (35, 2049176), (40, 1793029), (56, 1280735), (70, 1024588), (140, 512294), (280, 256147)]