1287770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{509}}^1$

素因数の和:550

約数の個数: 32

約数和(自身を含む): 2643840

約数和(自身を除く): 1356070

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 509, 1018, 1265, 2530, 2545, 5090, 5599, 11198, 11707, 23414, 27995, 55990, 58535, 117070, 128777, 257554, 643885, 1287770]

約数ペア:

[(1, 1287770), (2, 643885), (5, 257554), (10, 128777), (11, 117070), (22, 58535), (23, 55990), (46, 27995), (55, 23414), (110, 11707), (115, 11198), (230, 5599), (253, 5090), (506, 2545), (509, 2530), (1018, 1265)]