172140680

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{9803}}^1$

素因数の和:10253

約数の個数: 32

約数和(自身を含む): 388238400

約数和(自身を除く): 216097720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 878, 1756, 2195, 3512, 4390, 8780, 9803, 17560, 19606, 39212, 49015, 78424, 98030, 196060, 392120, 4303517, 8607034, 17214068, 21517585, 34428136, 43035170, 86070340, 172140680]

約数ペア:

[(1, 172140680), (2, 86070340), (4, 43035170), (5, 34428136), (8, 21517585), (10, 17214068), (20, 8607034), (40, 4303517), (439, 392120), (878, 196060), (1756, 98030), (2195, 78424), (3512, 49015), (4390, 39212), (8780, 19606), (9803, 17560)]