19955490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{28921}}^1$

素因数の和:28954

約数の個数: 32

約数和(自身を含む): 49977216

約数和(自身を除く): 30021726

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690, 28921, 57842, 86763, 144605, 173526, 289210, 433815, 665183, 867630, 1330366, 1995549, 3325915, 3991098, 6651830, 9977745, 19955490]

約数ペア:

[(1, 19955490), (2, 9977745), (3, 6651830), (5, 3991098), (6, 3325915), (10, 1995549), (15, 1330366), (23, 867630), (30, 665183), (46, 433815), (69, 289210), (115, 173526), (138, 144605), (230, 86763), (345, 57842), (690, 28921)]