1640137894

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{499129}}^1$

素因数の和:499215

約数の個数: 16

約数和(自身を含む): 2587489920

約数和(自身を除く): 947352026

約数列:

[1, 2, 31, 53, 62, 106, 1643, 3286, 499129, 998258, 15472999, 26453837, 30945998, 52907674, 820068947, 1640137894]

約数ペア:

[(1, 1640137894), (2, 820068947), (31, 52907674), (53, 30945998), (62, 26453837), (106, 15472999), (1643, 998258), (3286, 499129)]