3228920

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{907}}^1$

素因数の和:1007

約数の個数: 32

約数和(自身を含む): 7354800

約数和(自身を除く): 4125880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 907, 1780, 1814, 3560, 3628, 4535, 7256, 9070, 18140, 36280, 80723, 161446, 322892, 403615, 645784, 807230, 1614460, 3228920]

約数ペア:

[(1, 3228920), (2, 1614460), (4, 807230), (5, 645784), (8, 403615), (10, 322892), (20, 161446), (40, 80723), (89, 36280), (178, 18140), (356, 9070), (445, 7256), (712, 4535), (890, 3628), (907, 3560), (1780, 1814)]