18279040

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^4$

素因数の和:71

約数の個数: 80

約数和(自身を含む): 47339730

約数和(自身を除く): 29060690

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 169, 208, 260, 320, 338, 416, 520, 640, 676, 832, 845, 1040, 1352, 1664, 1690, 2080, 2197, 2704, 3380, 4160, 4394, 5408, 6760, 8320, 8788, 10816, 10985, 13520, 17576, 21632, 21970, 27040, 28561, 35152, 43940, 54080, 57122, 70304, 87880, 108160, 114244, 140608, 142805, 175760, 228488, 281216, 285610, 351520, 456976, 571220, 703040, 913952, 1142440, 1406080, 1827904, 2284880, 3655808, 4569760, 9139520, 18279040]

約数ペア:

[(1, 18279040), (2, 9139520), (4, 4569760), (5, 3655808), (8, 2284880), (10, 1827904), (13, 1406080), (16, 1142440), (20, 913952), (26, 703040), (32, 571220), (40, 456976), (52, 351520), (64, 285610), (65, 281216), (80, 228488), (104, 175760), (128, 142805), (130, 140608), (160, 114244), (169, 108160), (208, 87880), (260, 70304), (320, 57122), (338, 54080), (416, 43940), (520, 35152), (640, 28561), (676, 27040), (832, 21970), (845, 21632), (1040, 17576), (1352, 13520), (1664, 10985), (1690, 10816), (2080, 8788), (2197, 8320), (2704, 6760), (3380, 5408), (4160, 4394)]