31806880

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{4057}}^1$

素因数の和:4086

約数の個数: 72

約数和(自身を含む): 87433668

約数和(自身を除く): 55626788

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 4057, 7840, 8114, 16228, 20285, 28399, 32456, 40570, 56798, 64912, 81140, 113596, 129824, 141995, 162280, 198793, 227192, 283990, 324560, 397586, 454384, 567980, 649120, 795172, 908768, 993965, 1135960, 1590344, 1987930, 2271920, 3180688, 3975860, 4543840, 6361376, 7951720, 15903440, 31806880]

約数ペア:

[(1, 31806880), (2, 15903440), (4, 7951720), (5, 6361376), (7, 4543840), (8, 3975860), (10, 3180688), (14, 2271920), (16, 1987930), (20, 1590344), (28, 1135960), (32, 993965), (35, 908768), (40, 795172), (49, 649120), (56, 567980), (70, 454384), (80, 397586), (98, 324560), (112, 283990), (140, 227192), (160, 198793), (196, 162280), (224, 141995), (245, 129824), (280, 113596), (392, 81140), (490, 64912), (560, 56798), (784, 40570), (980, 32456), (1120, 28399), (1568, 20285), (1960, 16228), (3920, 8114), (4057, 7840)]