390460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2789}}^1$

素因数の和:2805

約数の個数: 24

約数和(自身を含む): 937440

約数和(自身を除く): 546980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2789, 5578, 11156, 13945, 19523, 27890, 39046, 55780, 78092, 97615, 195230, 390460]

約数ペア:

[(1, 390460), (2, 195230), (4, 97615), (5, 78092), (7, 55780), (10, 39046), (14, 27890), (20, 19523), (28, 13945), (35, 11156), (70, 5578), (140, 2789)]