81436160

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2447}}^1$

素因数の和:2483

約数の個数: 80

約数和(自身を含む): 210361536

約数和(自身を除く): 128925376

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 512, 520, 640, 832, 1040, 1280, 1664, 2080, 2447, 2560, 3328, 4160, 4894, 6656, 8320, 9788, 12235, 16640, 19576, 24470, 31811, 33280, 39152, 48940, 63622, 78304, 97880, 127244, 156608, 159055, 195760, 254488, 313216, 318110, 391520, 508976, 626432, 636220, 783040, 1017952, 1252864, 1272440, 1566080, 2035904, 2544880, 3132160, 4071808, 5089760, 6264320, 8143616, 10179520, 16287232, 20359040, 40718080, 81436160]

約数ペア:

[(1, 81436160), (2, 40718080), (4, 20359040), (5, 16287232), (8, 10179520), (10, 8143616), (13, 6264320), (16, 5089760), (20, 4071808), (26, 3132160), (32, 2544880), (40, 2035904), (52, 1566080), (64, 1272440), (65, 1252864), (80, 1017952), (104, 783040), (128, 636220), (130, 626432), (160, 508976), (208, 391520), (256, 318110), (260, 313216), (320, 254488), (416, 195760), (512, 159055), (520, 156608), (640, 127244), (832, 97880), (1040, 78304), (1280, 63622), (1664, 48940), (2080, 39152), (2447, 33280), (2560, 31811), (3328, 24470), (4160, 19576), (4894, 16640), (6656, 12235), (8320, 9788)]