16717720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{21997}}^1$

素因数の和:22027

約数の個数: 32

約数和(自身を含む): 39596400

約数和(自身を除く): 22878680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 21997, 43994, 87988, 109985, 175976, 219970, 417943, 439940, 835886, 879880, 1671772, 2089715, 3343544, 4179430, 8358860, 16717720]

約数ペア:

[(1, 16717720), (2, 8358860), (4, 4179430), (5, 3343544), (8, 2089715), (10, 1671772), (19, 879880), (20, 835886), (38, 439940), (40, 417943), (76, 219970), (95, 175976), (152, 109985), (190, 87988), (380, 43994), (760, 21997)]