638570238

素因数分解:

$2^1\times 3^1\times {\mathrm{239}}^1\times {\mathrm{445307}}^1$

素因数の和:445551

約数の個数: 16

約数和(自身を含む): 1282487040

約数和(自身を除く): 643916802

約数列:

[1, 2, 3, 6, 239, 478, 717, 1434, 445307, 890614, 1335921, 2671842, 106428373, 212856746, 319285119, 638570238]

約数ペア:

[(1, 638570238), (2, 319285119), (3, 212856746), (6, 106428373), (239, 2671842), (478, 1335921), (717, 890614), (1434, 445307)]