28158578

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{557}}^1$

素因数の和:746

約数の個数: 32

約数和(自身を含む): 50782464

約数和(自身を除く): 22623886

約数列:

[1, 2, 7, 14, 23, 46, 157, 161, 314, 322, 557, 1099, 1114, 2198, 3611, 3899, 7222, 7798, 12811, 25277, 25622, 50554, 87449, 89677, 174898, 179354, 612143, 1224286, 2011327, 4022654, 14079289, 28158578]

約数ペア:

[(1, 28158578), (2, 14079289), (7, 4022654), (14, 2011327), (23, 1224286), (46, 612143), (157, 179354), (161, 174898), (314, 89677), (322, 87449), (557, 50554), (1099, 25622), (1114, 25277), (2198, 12811), (3611, 7798), (3899, 7222)]