56280040

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{15809}}^1$

素因数の和:15909

約数の個数: 32

約数和(自身を含む): 128061000

約数和(自身を除く): 71780960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 15809, 31618, 63236, 79045, 126472, 158090, 316180, 632360, 1407001, 2814002, 5628004, 7035005, 11256008, 14070010, 28140020, 56280040]

約数ペア:

[(1, 56280040), (2, 28140020), (4, 14070010), (5, 11256008), (8, 7035005), (10, 5628004), (20, 2814002), (40, 1407001), (89, 632360), (178, 316180), (356, 158090), (445, 126472), (712, 79045), (890, 63236), (1780, 31618), (3560, 15809)]