20935910

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{439}}^1$

素因数の和:716

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 18980890

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 251, 439, 502, 878, 1255, 2195, 2510, 4390, 4769, 8341, 9538, 16682, 23845, 41705, 47690, 83410, 110189, 220378, 550945, 1101890, 2093591, 4187182, 10467955, 20935910]

約数ペア:

[(1, 20935910), (2, 10467955), (5, 4187182), (10, 2093591), (19, 1101890), (38, 550945), (95, 220378), (190, 110189), (251, 83410), (439, 47690), (502, 41705), (878, 23845), (1255, 16682), (2195, 9538), (2510, 8341), (4390, 4769)]