21942452720

素因数分解:

$2^4\times 5^1\times {\mathrm{274280659}}^1$

素因数の和:274280672

約数の個数: 20

約数和(自身を含む): 51016202760

約数和(自身を除く): 29073750040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 274280659, 548561318, 1097122636, 1371403295, 2194245272, 2742806590, 4388490544, 5485613180, 10971226360, 21942452720]

約数ペア:

[(1, 21942452720), (2, 10971226360), (4, 5485613180), (5, 4388490544), (8, 2742806590), (10, 2194245272), (16, 1371403295), (20, 1097122636), (40, 548561318), (80, 274280659)]