2784265

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:141

約数の個数: 32

約数和(自身を含む): 3981312

約数和(自身を除く): 1197047

約数列:

[1, 5, 11, 23, 31, 55, 71, 115, 155, 253, 341, 355, 713, 781, 1265, 1633, 1705, 2201, 3565, 3905, 7843, 8165, 11005, 17963, 24211, 39215, 50623, 89815, 121055, 253115, 556853, 2784265]

約数ペア:

[(1, 2784265), (5, 556853), (11, 253115), (23, 121055), (31, 89815), (55, 50623), (71, 39215), (115, 24211), (155, 17963), (253, 11005), (341, 8165), (355, 7843), (713, 3905), (781, 3565), (1265, 2201), (1633, 1705)]