320491490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^5\times {\mathrm{199}}^1$

素因数の和:261

約数の個数: 48

約数和(自身を含む): 637761600

約数和(自身を除く): 317270110

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 199, 242, 398, 605, 995, 1210, 1331, 1990, 2189, 2662, 4378, 6655, 10945, 13310, 14641, 21890, 24079, 29282, 48158, 73205, 120395, 146410, 161051, 240790, 264869, 322102, 529738, 805255, 1324345, 1610510, 2648690, 2913559, 5827118, 14567795, 29135590, 32049149, 64098298, 160245745, 320491490]

約数ペア:

[(1, 320491490), (2, 160245745), (5, 64098298), (10, 32049149), (11, 29135590), (22, 14567795), (55, 5827118), (110, 2913559), (121, 2648690), (199, 1610510), (242, 1324345), (398, 805255), (605, 529738), (995, 322102), (1210, 264869), (1331, 240790), (1990, 161051), (2189, 146410), (2662, 120395), (4378, 73205), (6655, 48158), (10945, 29282), (13310, 24079), (14641, 21890)]