64971520

素因数分解:

$2^8\times 5^1\times {\mathrm{193}}^1\times {\mathrm{263}}^1$

素因数の和:477

約数の個数: 72

約数和(自身を含む): 157028256

約数和(自身を除く): 92056736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 193, 256, 263, 320, 386, 526, 640, 772, 965, 1052, 1280, 1315, 1544, 1930, 2104, 2630, 3088, 3860, 4208, 5260, 6176, 7720, 8416, 10520, 12352, 15440, 16832, 21040, 24704, 30880, 33664, 42080, 49408, 50759, 61760, 67328, 84160, 101518, 123520, 168320, 203036, 247040, 253795, 336640, 406072, 507590, 812144, 1015180, 1624288, 2030360, 3248576, 4060720, 6497152, 8121440, 12994304, 16242880, 32485760, 64971520]

約数ペア:

[(1, 64971520), (2, 32485760), (4, 16242880), (5, 12994304), (8, 8121440), (10, 6497152), (16, 4060720), (20, 3248576), (32, 2030360), (40, 1624288), (64, 1015180), (80, 812144), (128, 507590), (160, 406072), (193, 336640), (256, 253795), (263, 247040), (320, 203036), (386, 168320), (526, 123520), (640, 101518), (772, 84160), (965, 67328), (1052, 61760), (1280, 50759), (1315, 49408), (1544, 42080), (1930, 33664), (2104, 30880), (2630, 24704), (3088, 21040), (3860, 16832), (4208, 15440), (5260, 12352), (6176, 10520), (7720, 8416)]