28513070

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{281}}^1$

素因数の和:500

約数の個数: 32

約数和(自身を含む): 52587360

約数和(自身を除く): 24074290

約数列:

[1, 2, 5, 10, 73, 139, 146, 278, 281, 365, 562, 695, 730, 1390, 1405, 2810, 10147, 20294, 20513, 39059, 41026, 50735, 78118, 101470, 102565, 195295, 205130, 390590, 2851307, 5702614, 14256535, 28513070]

約数ペア:

[(1, 28513070), (2, 14256535), (5, 5702614), (10, 2851307), (73, 390590), (139, 205130), (146, 195295), (278, 102565), (281, 101470), (365, 78118), (562, 50735), (695, 41026), (730, 39059), (1390, 20513), (1405, 20294), (2810, 10147)]