445916680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{487}}^1\times {\mathrm{2081}}^1$

素因数の和:2590

約数の個数: 64

約数和(自身を含む): 1097297280

約数和(自身を除く): 651380600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 487, 974, 1948, 2081, 2435, 3896, 4162, 4870, 5357, 8324, 9740, 10405, 10714, 16648, 19480, 20810, 21428, 22891, 26785, 41620, 42856, 45782, 53570, 83240, 91564, 107140, 114455, 183128, 214280, 228910, 457820, 915640, 1013447, 2026894, 4053788, 5067235, 8107576, 10134470, 11147917, 20268940, 22295834, 40537880, 44591668, 55739585, 89183336, 111479170, 222958340, 445916680]

約数ペア:

[(1, 445916680), (2, 222958340), (4, 111479170), (5, 89183336), (8, 55739585), (10, 44591668), (11, 40537880), (20, 22295834), (22, 20268940), (40, 11147917), (44, 10134470), (55, 8107576), (88, 5067235), (110, 4053788), (220, 2026894), (440, 1013447), (487, 915640), (974, 457820), (1948, 228910), (2081, 214280), (2435, 183128), (3896, 114455), (4162, 107140), (4870, 91564), (5357, 83240), (8324, 53570), (9740, 45782), (10405, 42856), (10714, 41620), (16648, 26785), (19480, 22891), (20810, 21428)]