81864304

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{165049}}^1$

素因数の和:165088

約数の個数: 20

約数和(自身を含む): 163729600

約数和(自身を除く): 81865296

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 165049, 330098, 660196, 1320392, 2640784, 5116519, 10233038, 20466076, 40932152, 81864304]

約数ペア:

[(1, 81864304), (2, 40932152), (4, 20466076), (8, 10233038), (16, 5116519), (31, 2640784), (62, 1320392), (124, 660196), (248, 330098), (496, 165049)]