19899430

素因数分解:

$2^1\times 5^1\times {\mathrm{179}}^1\times {\mathrm{11117}}^1$

素因数の和:11303

約数の個数: 16

約数和(自身を含む): 36022320

約数和(自身を除く): 16122890

約数列:

[1, 2, 5, 10, 179, 358, 895, 1790, 11117, 22234, 55585, 111170, 1989943, 3979886, 9949715, 19899430]

約数ペア:

[(1, 19899430), (2, 9949715), (5, 3979886), (10, 1989943), (179, 111170), (358, 55585), (895, 22234), (1790, 11117)]