8919880

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1289}}^1$

素因数の和:1473

約数の個数: 32

約数和(自身を含む): 20201400

約数和(自身を除く): 11281520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1289, 1384, 1730, 2578, 3460, 5156, 6445, 6920, 10312, 12890, 25780, 51560, 222997, 445994, 891988, 1114985, 1783976, 2229970, 4459940, 8919880]

約数ペア:

[(1, 8919880), (2, 4459940), (4, 2229970), (5, 1783976), (8, 1114985), (10, 891988), (20, 445994), (40, 222997), (173, 51560), (346, 25780), (692, 12890), (865, 10312), (1289, 6920), (1384, 6445), (1730, 5156), (2578, 3460)]