201779980

素因数分解:

$2^2\times 5^1\times {\mathrm{571}}^1\times {\mathrm{17669}}^1$

素因数の和:18249

約数の個数: 24

約数和(自身を含む): 424504080

約数和(自身を除く): 222724100

約数列:

[1, 2, 4, 5, 10, 20, 571, 1142, 2284, 2855, 5710, 11420, 17669, 35338, 70676, 88345, 176690, 353380, 10088999, 20177998, 40355996, 50444995, 100889990, 201779980]

約数ペア:

[(1, 201779980), (2, 100889990), (4, 50444995), (5, 40355996), (10, 20177998), (20, 10088999), (571, 353380), (1142, 176690), (2284, 88345), (2855, 70676), (5710, 35338), (11420, 17669)]