257163290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43661}}^1$

素因数の和:43718

約数の個数: 32

約数和(自身を含む): 502986240

約数和(自身を除く): 245822950

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 95, 155, 190, 310, 589, 1178, 2945, 5890, 43661, 87322, 218305, 436610, 829559, 1353491, 1659118, 2706982, 4147795, 6767455, 8295590, 13534910, 25716329, 51432658, 128581645, 257163290]

約数ペア:

[(1, 257163290), (2, 128581645), (5, 51432658), (10, 25716329), (19, 13534910), (31, 8295590), (38, 6767455), (62, 4147795), (95, 2706982), (155, 1659118), (190, 1353491), (310, 829559), (589, 436610), (1178, 218305), (2945, 87322), (5890, 43661)]