640902

素因数分解:

$2^1\times 3^1\times {\mathrm{223}}^1\times {\mathrm{479}}^1$

素因数の和:707

約数の個数: 16

約数和(自身を含む): 1290240

約数和(自身を除く): 649338

約数列:

[1, 2, 3, 6, 223, 446, 479, 669, 958, 1338, 1437, 2874, 106817, 213634, 320451, 640902]

約数ペア:

[(1, 640902), (2, 320451), (3, 213634), (6, 106817), (223, 2874), (446, 1437), (479, 1338), (669, 958)]