25498880

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1811}}^1$

素因数の和:1843

約数の個数: 72

約数和(自身を含む): 66667104

約数和(自身を除く): 41168224

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1760, 1811, 2816, 3520, 3622, 7040, 7244, 9055, 14080, 14488, 18110, 19921, 28976, 36220, 39842, 57952, 72440, 79684, 99605, 115904, 144880, 159368, 199210, 231808, 289760, 318736, 398420, 463616, 579520, 637472, 796840, 1159040, 1274944, 1593680, 2318080, 2549888, 3187360, 5099776, 6374720, 12749440, 25498880]

約数ペア:

[(1, 25498880), (2, 12749440), (4, 6374720), (5, 5099776), (8, 3187360), (10, 2549888), (11, 2318080), (16, 1593680), (20, 1274944), (22, 1159040), (32, 796840), (40, 637472), (44, 579520), (55, 463616), (64, 398420), (80, 318736), (88, 289760), (110, 231808), (128, 199210), (160, 159368), (176, 144880), (220, 115904), (256, 99605), (320, 79684), (352, 72440), (440, 57952), (640, 39842), (704, 36220), (880, 28976), (1280, 19921), (1408, 18110), (1760, 14488), (1811, 14080), (2816, 9055), (3520, 7244), (3622, 7040)]