20923240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{40237}}^1$

素因数の和:40261

約数の個数: 32

約数和(自身を含む): 50699880

約数和(自身を除く): 29776640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 40237, 80474, 160948, 201185, 321896, 402370, 523081, 804740, 1046162, 1609480, 2092324, 2615405, 4184648, 5230810, 10461620, 20923240]

約数ペア:

[(1, 20923240), (2, 10461620), (4, 5230810), (5, 4184648), (8, 2615405), (10, 2092324), (13, 1609480), (20, 1046162), (26, 804740), (40, 523081), (52, 402370), (65, 321896), (104, 201185), (130, 160948), (260, 80474), (520, 40237)]