9031720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:202

約数の個数: 64

約数和(自身を含む): 21384000

約数和(自身を除く): 12352280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 59, 86, 89, 118, 172, 178, 215, 236, 295, 344, 356, 430, 445, 472, 590, 712, 860, 890, 1180, 1720, 1780, 2360, 2537, 3560, 3827, 5074, 5251, 7654, 10148, 10502, 12685, 15308, 19135, 20296, 21004, 25370, 26255, 30616, 38270, 42008, 50740, 52510, 76540, 101480, 105020, 153080, 210040, 225793, 451586, 903172, 1128965, 1806344, 2257930, 4515860, 9031720]

約数ペア:

[(1, 9031720), (2, 4515860), (4, 2257930), (5, 1806344), (8, 1128965), (10, 903172), (20, 451586), (40, 225793), (43, 210040), (59, 153080), (86, 105020), (89, 101480), (118, 76540), (172, 52510), (178, 50740), (215, 42008), (236, 38270), (295, 30616), (344, 26255), (356, 25370), (430, 21004), (445, 20296), (472, 19135), (590, 15308), (712, 12685), (860, 10502), (890, 10148), (1180, 7654), (1720, 5251), (1780, 5074), (2360, 3827), (2537, 3560)]