287740138

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{289477}}^1$

素因数の和:289557

約数の個数: 16

約数和(自身を含む): 500217984

約数和(自身を除く): 212477846

約数列:

[1, 2, 7, 14, 71, 142, 497, 994, 289477, 578954, 2026339, 4052678, 20552867, 41105734, 143870069, 287740138]

約数ペア:

[(1, 287740138), (2, 143870069), (7, 41105734), (14, 20552867), (71, 4052678), (142, 2026339), (497, 578954), (994, 289477)]