31907920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{359}}^1$

素因数の和:484

約数の個数: 80

約数和(自身を含む): 81959040

約数和(自身を除く): 50051120

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 101, 110, 176, 202, 220, 359, 404, 440, 505, 718, 808, 880, 1010, 1111, 1436, 1616, 1795, 2020, 2222, 2872, 3590, 3949, 4040, 4444, 5555, 5744, 7180, 7898, 8080, 8888, 11110, 14360, 15796, 17776, 19745, 22220, 28720, 31592, 36259, 39490, 44440, 63184, 72518, 78980, 88880, 145036, 157960, 181295, 290072, 315920, 362590, 398849, 580144, 725180, 797698, 1450360, 1595396, 1994245, 2900720, 3190792, 3988490, 6381584, 7976980, 15953960, 31907920]

約数ペア:

[(1, 31907920), (2, 15953960), (4, 7976980), (5, 6381584), (8, 3988490), (10, 3190792), (11, 2900720), (16, 1994245), (20, 1595396), (22, 1450360), (40, 797698), (44, 725180), (55, 580144), (80, 398849), (88, 362590), (101, 315920), (110, 290072), (176, 181295), (202, 157960), (220, 145036), (359, 88880), (404, 78980), (440, 72518), (505, 63184), (718, 44440), (808, 39490), (880, 36259), (1010, 31592), (1111, 28720), (1436, 22220), (1616, 19745), (1795, 17776), (2020, 15796), (2222, 14360), (2872, 11110), (3590, 8888), (3949, 8080), (4040, 7898), (4444, 7180), (5555, 5744)]