16117580

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{101}}^2$

素因数の和:290

約数の個数: 36

約数和(自身を含む): 34618080

約数和(自身を除く): 18500500

約数列:

[1, 2, 4, 5, 10, 20, 79, 101, 158, 202, 316, 395, 404, 505, 790, 1010, 1580, 2020, 7979, 10201, 15958, 20402, 31916, 39895, 40804, 51005, 79790, 102010, 159580, 204020, 805879, 1611758, 3223516, 4029395, 8058790, 16117580]

約数ペア:

[(1, 16117580), (2, 8058790), (4, 4029395), (5, 3223516), (10, 1611758), (20, 805879), (79, 204020), (101, 159580), (158, 102010), (202, 79790), (316, 51005), (395, 40804), (404, 39895), (505, 31916), (790, 20402), (1010, 15958), (1580, 10201), (2020, 7979)]