68218760

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{10463}}^1$

素因数の和:10637

約数の個数: 32

約数和(自身を含む): 154448640

約数和(自身を除く): 86229880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 10463, 20926, 41852, 52315, 83704, 104630, 209260, 418520, 1705469, 3410938, 6821876, 8527345, 13643752, 17054690, 34109380, 68218760]

約数ペア:

[(1, 68218760), (2, 34109380), (4, 17054690), (5, 13643752), (8, 8527345), (10, 6821876), (20, 3410938), (40, 1705469), (163, 418520), (326, 209260), (652, 104630), (815, 83704), (1304, 52315), (1630, 41852), (3260, 20926), (6520, 10463)]