129847420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{439}}^1\times {\mathrm{643}}^1$

素因数の和:1114

約数の個数: 48

約数和(自身を含む): 285626880

約数和(自身を除く): 155779460

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 439, 460, 643, 878, 1286, 1756, 2195, 2572, 3215, 4390, 6430, 8780, 10097, 12860, 14789, 20194, 29578, 40388, 50485, 59156, 73945, 100970, 147890, 201940, 282277, 295780, 564554, 1129108, 1411385, 2822770, 5645540, 6492371, 12984742, 25969484, 32461855, 64923710, 129847420]

約数ペア:

[(1, 129847420), (2, 64923710), (4, 32461855), (5, 25969484), (10, 12984742), (20, 6492371), (23, 5645540), (46, 2822770), (92, 1411385), (115, 1129108), (230, 564554), (439, 295780), (460, 282277), (643, 201940), (878, 147890), (1286, 100970), (1756, 73945), (2195, 59156), (2572, 50485), (3215, 40388), (4390, 29578), (6430, 20194), (8780, 14789), (10097, 12860)]