161760400

素因数分解:

$2^4\times 5^2\times {\mathrm{79}}^1\times {\mathrm{5119}}^1$

素因数の和:5216

約数の個数: 60

約数和(自身を含む): 393625600

約数和(自身を除く): 231865200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 79, 80, 100, 158, 200, 316, 395, 400, 632, 790, 1264, 1580, 1975, 3160, 3950, 5119, 6320, 7900, 10238, 15800, 20476, 25595, 31600, 40952, 51190, 81904, 102380, 127975, 204760, 255950, 404401, 409520, 511900, 808802, 1023800, 1617604, 2022005, 2047600, 3235208, 4044010, 6470416, 8088020, 10110025, 16176040, 20220050, 32352080, 40440100, 80880200, 161760400]

約数ペア:

[(1, 161760400), (2, 80880200), (4, 40440100), (5, 32352080), (8, 20220050), (10, 16176040), (16, 10110025), (20, 8088020), (25, 6470416), (40, 4044010), (50, 3235208), (79, 2047600), (80, 2022005), (100, 1617604), (158, 1023800), (200, 808802), (316, 511900), (395, 409520), (400, 404401), (632, 255950), (790, 204760), (1264, 127975), (1580, 102380), (1975, 81904), (3160, 51190), (3950, 40952), (5119, 31600), (6320, 25595), (7900, 20476), (10238, 15800)]