20155118

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1\times {\mathrm{569}}^1$

素因数の和:859

約数の個数: 16

約数和(自身を含む): 30780000

約数和(自身を除く): 10624882

約数列:

[1, 2, 89, 178, 199, 398, 569, 1138, 17711, 35422, 50641, 101282, 113231, 226462, 10077559, 20155118]

約数ペア:

[(1, 20155118), (2, 10077559), (89, 226462), (178, 113231), (199, 101282), (398, 50641), (569, 35422), (1138, 17711)]