87312560

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{12263}}^1$

素因数の和:12365

約数の個数: 40

約数和(自身を含む): 205299360

約数和(自身を除く): 117986800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 12263, 24526, 49052, 61315, 98104, 122630, 196208, 245260, 490520, 981040, 1091407, 2182814, 4365628, 5457035, 8731256, 10914070, 17462512, 21828140, 43656280, 87312560]

約数ペア:

[(1, 87312560), (2, 43656280), (4, 21828140), (5, 17462512), (8, 10914070), (10, 8731256), (16, 5457035), (20, 4365628), (40, 2182814), (80, 1091407), (89, 981040), (178, 490520), (356, 245260), (445, 196208), (712, 122630), (890, 98104), (1424, 61315), (1780, 49052), (3560, 24526), (7120, 12263)]