156940816

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{89989}}^1$

素因数の和:90106

約数の個数: 20

約数和(自身を含む): 306865900

約数和(自身を除く): 149925084

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 89989, 179978, 359956, 719912, 1439824, 9808801, 19617602, 39235204, 78470408, 156940816]

約数ペア:

[(1, 156940816), (2, 78470408), (4, 39235204), (8, 19617602), (16, 9808801), (109, 1439824), (218, 719912), (436, 359956), (872, 179978), (1744, 89989)]