28500400

素因数分解:

$2^4\times 5^2\times {\mathrm{43}}^1\times {\mathrm{1657}}^1$

素因数の和:1718

約数の個数: 60

約数和(自身を含む): 70106872

約数和(自身を除く): 41606472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 43, 50, 80, 86, 100, 172, 200, 215, 344, 400, 430, 688, 860, 1075, 1657, 1720, 2150, 3314, 3440, 4300, 6628, 8285, 8600, 13256, 16570, 17200, 26512, 33140, 41425, 66280, 71251, 82850, 132560, 142502, 165700, 285004, 331400, 356255, 570008, 662800, 712510, 1140016, 1425020, 1781275, 2850040, 3562550, 5700080, 7125100, 14250200, 28500400]

約数ペア:

[(1, 28500400), (2, 14250200), (4, 7125100), (5, 5700080), (8, 3562550), (10, 2850040), (16, 1781275), (20, 1425020), (25, 1140016), (40, 712510), (43, 662800), (50, 570008), (80, 356255), (86, 331400), (100, 285004), (172, 165700), (200, 142502), (215, 132560), (344, 82850), (400, 71251), (430, 66280), (688, 41425), (860, 33140), (1075, 26512), (1657, 17200), (1720, 16570), (2150, 13256), (3314, 8600), (3440, 8285), (4300, 6628)]