31506040

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{19211}}^1$

素因数の和:19263

約数の個数: 32

約数和(自身を含む): 72621360

約数和(自身を除く): 41115320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 19211, 38422, 76844, 96055, 153688, 192110, 384220, 768440, 787651, 1575302, 3150604, 3938255, 6301208, 7876510, 15753020, 31506040]

約数ペア:

[(1, 31506040), (2, 15753020), (4, 7876510), (5, 6301208), (8, 3938255), (10, 3150604), (20, 1575302), (40, 787651), (41, 768440), (82, 384220), (164, 192110), (205, 153688), (328, 96055), (410, 76844), (820, 38422), (1640, 19211)]