891400535

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{180263}}^1$

素因数の和:180334

約数の個数: 16

約数和(自身を含む): 1142152704

約数和(自身を除く): 250752169

約数列:

[1, 5, 23, 43, 115, 215, 989, 4945, 180263, 901315, 4146049, 7751309, 20730245, 38756545, 178280107, 891400535]

約数ペア:

[(1, 891400535), (5, 178280107), (23, 38756545), (43, 20730245), (115, 7751309), (215, 4146049), (989, 901315), (4945, 180263)]