7478980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21997}}^1$

素因数の和:22023

約数の個数: 24

約数和(自身を含む): 16630488

約数和(自身を除く): 9151508

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 21997, 43994, 87988, 109985, 219970, 373949, 439940, 747898, 1495796, 1869745, 3739490, 7478980]

約数ペア:

[(1, 7478980), (2, 3739490), (4, 1869745), (5, 1495796), (10, 747898), (17, 439940), (20, 373949), (34, 219970), (68, 109985), (85, 87988), (170, 43994), (340, 21997)]