17978860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{52879}}^1$

素因数の和:52905

約数の個数: 24

約数和(自身を含む): 39977280

約数和(自身を除く): 21998420

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 52879, 105758, 211516, 264395, 528790, 898943, 1057580, 1797886, 3595772, 4494715, 8989430, 17978860]

約数ペア:

[(1, 17978860), (2, 8989430), (4, 4494715), (5, 3595772), (10, 1797886), (17, 1057580), (20, 898943), (34, 528790), (68, 264395), (85, 211516), (170, 105758), (340, 52879)]