201817285

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{401}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 266747904

約数和(自身を除く): 64930619

約数列:

[1, 5, 17, 31, 85, 155, 191, 401, 527, 955, 2005, 2635, 3247, 5921, 6817, 12431, 16235, 29605, 34085, 62155, 76591, 100657, 211327, 382955, 503285, 1056635, 1302047, 2374321, 6510235, 11871605, 40363457, 201817285]

約数ペア:

[(1, 201817285), (5, 40363457), (17, 11871605), (31, 6510235), (85, 2374321), (155, 1302047), (191, 1056635), (401, 503285), (527, 382955), (955, 211327), (2005, 100657), (2635, 76591), (3247, 62155), (5921, 34085), (6817, 29605), (12431, 16235)]