6457840

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{907}}^1$

素因数の和:1009

約数の個数: 40

約数和(自身を含む): 15199920

約数和(自身を除く): 8742080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 907, 1424, 1780, 1814, 3560, 3628, 4535, 7120, 7256, 9070, 14512, 18140, 36280, 72560, 80723, 161446, 322892, 403615, 645784, 807230, 1291568, 1614460, 3228920, 6457840]

約数ペア:

[(1, 6457840), (2, 3228920), (4, 1614460), (5, 1291568), (8, 807230), (10, 645784), (16, 403615), (20, 322892), (40, 161446), (80, 80723), (89, 72560), (178, 36280), (356, 18140), (445, 14512), (712, 9070), (890, 7256), (907, 7120), (1424, 4535), (1780, 3628), (1814, 3560)]