28148240

素因数分解:

$2^4\times 5^1\times {\mathrm{331}}^1\times {\mathrm{1063}}^1$

素因数の和:1407

約数の個数: 40

約数和(自身を含む): 65704128

約数和(自身を除く): 37555888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 331, 662, 1063, 1324, 1655, 2126, 2648, 3310, 4252, 5296, 5315, 6620, 8504, 10630, 13240, 17008, 21260, 26480, 42520, 85040, 351853, 703706, 1407412, 1759265, 2814824, 3518530, 5629648, 7037060, 14074120, 28148240]

約数ペア:

[(1, 28148240), (2, 14074120), (4, 7037060), (5, 5629648), (8, 3518530), (10, 2814824), (16, 1759265), (20, 1407412), (40, 703706), (80, 351853), (331, 85040), (662, 42520), (1063, 26480), (1324, 21260), (1655, 17008), (2126, 13240), (2648, 10630), (3310, 8504), (4252, 6620), (5296, 5315)]