20157872

素因数分解:

$2^4\times 7^1\times {\mathrm{179981}}^1$

素因数の和:179996

約数の個数: 20

約数和(自身を含む): 44635536

約数和(自身を除く): 24477664

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 179981, 359962, 719924, 1259867, 1439848, 2519734, 2879696, 5039468, 10078936, 20157872]

約数ペア:

[(1, 20157872), (2, 10078936), (4, 5039468), (7, 2879696), (8, 2519734), (14, 1439848), (16, 1259867), (28, 719924), (56, 359962), (112, 179981)]