661255982

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{39563}}^1$

素因数の和:39763

約数の個数: 16

約数和(自身を含む): 1015528752

約数和(自身を除く): 354272770

約数列:

[1, 2, 61, 122, 137, 274, 8357, 16714, 39563, 79126, 2413343, 4826686, 5420131, 10840262, 330627991, 661255982]

約数ペア:

[(1, 661255982), (2, 330627991), (61, 10840262), (122, 5420131), (137, 4826686), (274, 2413343), (8357, 79126), (16714, 39563)]