20189390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{155303}}^1$

素因数の和:155323

約数の個数: 16

約数和(自身を含む): 39136608

約数和(自身を除く): 18947218

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 155303, 310606, 776515, 1553030, 2018939, 4037878, 10094695, 20189390]

約数ペア:

[(1, 20189390), (2, 10094695), (5, 4037878), (10, 2018939), (13, 1553030), (26, 776515), (65, 310606), (130, 155303)]