40718080

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2447}}^1$

素因数の和:2481

約数の個数: 72

約数和(自身を含む): 105077952

約数和(自身を除く): 64359872

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, 520, 640, 832, 1040, 1280, 1664, 2080, 2447, 3328, 4160, 4894, 8320, 9788, 12235, 16640, 19576, 24470, 31811, 39152, 48940, 63622, 78304, 97880, 127244, 156608, 159055, 195760, 254488, 313216, 318110, 391520, 508976, 626432, 636220, 783040, 1017952, 1272440, 1566080, 2035904, 2544880, 3132160, 4071808, 5089760, 8143616, 10179520, 20359040, 40718080]

約数ペア:

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