19689225

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{337}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 35206080

約数和(自身を除く): 15516855

約数列:

[1, 3, 5, 15, 19, 25, 41, 57, 75, 95, 123, 205, 285, 337, 475, 615, 779, 1011, 1025, 1425, 1685, 2337, 3075, 3895, 5055, 6403, 8425, 11685, 13817, 19209, 19475, 25275, 32015, 41451, 58425, 69085, 96045, 160075, 207255, 262523, 345425, 480225, 787569, 1036275, 1312615, 3937845, 6563075, 19689225]

約数ペア:

[(1, 19689225), (3, 6563075), (5, 3937845), (15, 1312615), (19, 1036275), (25, 787569), (41, 480225), (57, 345425), (75, 262523), (95, 207255), (123, 160075), (205, 96045), (285, 69085), (337, 58425), (475, 41451), (615, 32015), (779, 25275), (1011, 19475), (1025, 19209), (1425, 13817), (1685, 11685), (2337, 8425), (3075, 6403), (3895, 5055)]