121817860

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{68437}}^1$

素因数の和:68535

約数の個数: 24

約数和(自身を含む): 258695640

約数和(自身を除く): 136877780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 68437, 136874, 273748, 342185, 684370, 1368740, 6090893, 12181786, 24363572, 30454465, 60908930, 121817860]

約数ペア:

[(1, 121817860), (2, 60908930), (4, 30454465), (5, 24363572), (10, 12181786), (20, 6090893), (89, 1368740), (178, 684370), (356, 342185), (445, 273748), (890, 136874), (1780, 68437)]