889147910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{178903}}^1$

素因数の和:178988

約数の個数: 32

約数和(自身を含む): 1854876672

約数和(自身を除く): 965728762

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 142, 355, 497, 710, 994, 2485, 4970, 178903, 357806, 894515, 1252321, 1789030, 2504642, 6261605, 12523210, 12702113, 25404226, 63510565, 88914791, 127021130, 177829582, 444573955, 889147910]

約数ペア:

[(1, 889147910), (2, 444573955), (5, 177829582), (7, 127021130), (10, 88914791), (14, 63510565), (35, 25404226), (70, 12702113), (71, 12523210), (142, 6261605), (355, 2504642), (497, 1789030), (710, 1252321), (994, 894515), (2485, 357806), (4970, 178903)]