18500880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{491}}^1$

素因数の和:664

約数の個数: 80

約数和(自身を含む): 57835584

約数和(自身を除く): 39334704

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 157, 240, 314, 471, 491, 628, 785, 942, 982, 1256, 1473, 1570, 1884, 1964, 2355, 2455, 2512, 2946, 3140, 3768, 3928, 4710, 4910, 5892, 6280, 7365, 7536, 7856, 9420, 9820, 11784, 12560, 14730, 18840, 19640, 23568, 29460, 37680, 39280, 58920, 77087, 117840, 154174, 231261, 308348, 385435, 462522, 616696, 770870, 925044, 1156305, 1233392, 1541740, 1850088, 2312610, 3083480, 3700176, 4625220, 6166960, 9250440, 18500880]

約数ペア:

[(1, 18500880), (2, 9250440), (3, 6166960), (4, 4625220), (5, 3700176), (6, 3083480), (8, 2312610), (10, 1850088), (12, 1541740), (15, 1233392), (16, 1156305), (20, 925044), (24, 770870), (30, 616696), (40, 462522), (48, 385435), (60, 308348), (80, 231261), (120, 154174), (157, 117840), (240, 77087), (314, 58920), (471, 39280), (491, 37680), (628, 29460), (785, 23568), (942, 19640), (982, 18840), (1256, 14730), (1473, 12560), (1570, 11784), (1884, 9820), (1964, 9420), (2355, 7856), (2455, 7536), (2512, 7365), (2946, 6280), (3140, 5892), (3768, 4910), (3928, 4710)]