68460520

素因数分解:

$2^3\times 5^1\times {\mathrm{653}}^1\times {\mathrm{2621}}^1$

素因数の和:3285

約数の個数: 32

約数和(自身を含む): 154330920

約数和(自身を除く): 85870400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 653, 1306, 2612, 2621, 3265, 5224, 5242, 6530, 10484, 13060, 13105, 20968, 26120, 26210, 52420, 104840, 1711513, 3423026, 6846052, 8557565, 13692104, 17115130, 34230260, 68460520]

約数ペア:

[(1, 68460520), (2, 34230260), (4, 17115130), (5, 13692104), (8, 8557565), (10, 6846052), (20, 3423026), (40, 1711513), (653, 104840), (1306, 52420), (2612, 26210), (2621, 26120), (3265, 20968), (5224, 13105), (5242, 13060), (6530, 10484)]