66128720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{449}}^1$

素因数の和:732

約数の個数: 80

約数和(自身を含む): 176774400

約数和(自身を除く): 110645680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 263, 280, 449, 526, 560, 898, 1052, 1315, 1796, 1841, 2104, 2245, 2630, 3143, 3592, 3682, 4208, 4490, 5260, 6286, 7184, 7364, 8980, 9205, 10520, 12572, 14728, 15715, 17960, 18410, 21040, 25144, 29456, 31430, 35920, 36820, 50288, 62860, 73640, 118087, 125720, 147280, 236174, 251440, 472348, 590435, 826609, 944696, 1180870, 1653218, 1889392, 2361740, 3306436, 4133045, 4723480, 6612872, 8266090, 9446960, 13225744, 16532180, 33064360, 66128720]

約数ペア:

[(1, 66128720), (2, 33064360), (4, 16532180), (5, 13225744), (7, 9446960), (8, 8266090), (10, 6612872), (14, 4723480), (16, 4133045), (20, 3306436), (28, 2361740), (35, 1889392), (40, 1653218), (56, 1180870), (70, 944696), (80, 826609), (112, 590435), (140, 472348), (263, 251440), (280, 236174), (449, 147280), (526, 125720), (560, 118087), (898, 73640), (1052, 62860), (1315, 50288), (1796, 36820), (1841, 35920), (2104, 31430), (2245, 29456), (2630, 25144), (3143, 21040), (3592, 18410), (3682, 17960), (4208, 15715), (4490, 14728), (5260, 12572), (6286, 10520), (7184, 9205), (7364, 8980)]