1640372638

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{310559}}^1$

素因数の和:310719

約数の個数: 16

約数和(自身を含む): 2608704000

約数和(自身を除く): 968331362

約数列:

[1, 2, 19, 38, 139, 278, 2641, 5282, 310559, 621118, 5900621, 11801242, 43167701, 86335402, 820186319, 1640372638]

約数ペア:

[(1, 1640372638), (2, 820186319), (19, 86335402), (38, 43167701), (139, 11801242), (278, 5900621), (2641, 621118), (5282, 310559)]