640407046

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{154613}}^1$

素因数の和:154743

約数の個数: 16

約数和(自身を含む): 1020452400

約数和(自身を除く): 380045354

約数列:

[1, 2, 19, 38, 109, 218, 2071, 4142, 154613, 309226, 2937647, 5875294, 16852817, 33705634, 320203523, 640407046]

約数ペア:

[(1, 640407046), (2, 320203523), (19, 33705634), (38, 16852817), (109, 5875294), (218, 2937647), (2071, 309226), (4142, 154613)]