15120728

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3803}}^1$

素因数の和:3887

約数の個数: 32

約数和(自身を含む): 32866560

約数和(自身を除く): 17745832

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3803, 3976, 7606, 15212, 26621, 30424, 53242, 106484, 212968, 270013, 540026, 1080052, 1890091, 2160104, 3780182, 7560364, 15120728]

約数ペア:

[(1, 15120728), (2, 7560364), (4, 3780182), (7, 2160104), (8, 1890091), (14, 1080052), (28, 540026), (56, 270013), (71, 212968), (142, 106484), (284, 53242), (497, 30424), (568, 26621), (994, 15212), (1988, 7606), (3803, 3976)]