810531860

素因数分解:

$2^2\times 5^1\times {\mathrm{4157}}^1\times {\mathrm{9749}}^1$

素因数の和:13915

約数の個数: 24

約数和(自身を含む): 1702701000

約数和(自身を除く): 892169140

約数列:

[1, 2, 4, 5, 10, 20, 4157, 8314, 9749, 16628, 19498, 20785, 38996, 41570, 48745, 83140, 97490, 194980, 40526593, 81053186, 162106372, 202632965, 405265930, 810531860]

約数ペア:

[(1, 810531860), (2, 405265930), (4, 202632965), (5, 162106372), (10, 81053186), (20, 40526593), (4157, 194980), (8314, 97490), (9749, 83140), (16628, 48745), (19498, 41570), (20785, 38996)]