640902959

素因数分解:

${\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1\times {\mathrm{1627}}^1$

素因数の和:1886

約数の個数: 16

約数和(自身を含む): 673913856

約数和(自身を除く): 33010897

約数列:

[1, 31, 97, 131, 1627, 3007, 4061, 12707, 50437, 157819, 213137, 393917, 4892389, 6607247, 20674289, 640902959]

約数ペア:

[(1, 640902959), (31, 20674289), (97, 6607247), (131, 4892389), (1627, 393917), (3007, 213137), (4061, 157819), (12707, 50437)]