317335280

素因数分解:

$2^4\times 5^1\times {\mathrm{3966691}}^1$

素因数の和:3966704

約数の個数: 20

約数和(自身を含む): 737804712

約数和(自身を除く): 420469432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3966691, 7933382, 15866764, 19833455, 31733528, 39666910, 63467056, 79333820, 158667640, 317335280]

約数ペア:

[(1, 317335280), (2, 158667640), (4, 79333820), (5, 63467056), (8, 39666910), (10, 31733528), (16, 19833455), (20, 15866764), (40, 7933382), (80, 3966691)]