257942708

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{709}}^1\times {\mathrm{4787}}^1$

素因数の和:5519

約数の個数: 24

約数和(自身を含む): 475927200

約数和(自身を除く): 217984492

約数列:

[1, 2, 4, 19, 38, 76, 709, 1418, 2836, 4787, 9574, 13471, 19148, 26942, 53884, 90953, 181906, 363812, 3393983, 6787966, 13575932, 64485677, 128971354, 257942708]

約数ペア:

[(1, 257942708), (2, 128971354), (4, 64485677), (19, 13575932), (38, 6787966), (76, 3393983), (709, 363812), (1418, 181906), (2836, 90953), (4787, 53884), (9574, 26942), (13471, 19148)]