68508760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{55249}}^1$

素因数の和:55291

約数の個数: 32

約数和(自身を含む): 159120000

約数和(自身を除く): 90611240

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 55249, 110498, 220996, 276245, 441992, 552490, 1104980, 1712719, 2209960, 3425438, 6850876, 8563595, 13701752, 17127190, 34254380, 68508760]

約数ペア:

[(1, 68508760), (2, 34254380), (4, 17127190), (5, 13701752), (8, 8563595), (10, 6850876), (20, 3425438), (31, 2209960), (40, 1712719), (62, 1104980), (124, 552490), (155, 441992), (248, 276245), (310, 220996), (620, 110498), (1240, 55249)]