19640872

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{229}}^1$

素因数の和:457

約数の個数: 32

約数和(自身を含む): 37756800

約数和(自身を除く): 18115928

約数列:

[1, 2, 4, 8, 71, 142, 151, 229, 284, 302, 458, 568, 604, 916, 1208, 1832, 10721, 16259, 21442, 32518, 34579, 42884, 65036, 69158, 85768, 130072, 138316, 276632, 2455109, 4910218, 9820436, 19640872]

約数ペア:

[(1, 19640872), (2, 9820436), (4, 4910218), (8, 2455109), (71, 276632), (142, 138316), (151, 130072), (229, 85768), (284, 69158), (302, 65036), (458, 42884), (568, 34579), (604, 32518), (916, 21442), (1208, 16259), (1832, 10721)]