20021270

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{87049}}^1$

素因数の和:87079

約数の個数: 16

約数和(自身を含む): 37605600

約数和(自身を除く): 17584330

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 87049, 174098, 435245, 870490, 2002127, 4004254, 10010635, 20021270]

約数ペア:

[(1, 20021270), (2, 10010635), (5, 4004254), (10, 2002127), (23, 870490), (46, 435245), (115, 174098), (230, 87049)]