89785520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{397}}^1$

素因数の和:678

約数の個数: 80

約数和(自身を含む): 229190688

約数和(自身を除く): 139405168

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 257, 397, 440, 514, 794, 880, 1028, 1285, 1588, 1985, 2056, 2570, 2827, 3176, 3970, 4112, 4367, 5140, 5654, 6352, 7940, 8734, 10280, 11308, 14135, 15880, 17468, 20560, 21835, 22616, 28270, 31760, 34936, 43670, 45232, 56540, 69872, 87340, 102029, 113080, 174680, 204058, 226160, 349360, 408116, 510145, 816232, 1020290, 1122319, 1632464, 2040580, 2244638, 4081160, 4489276, 5611595, 8162320, 8978552, 11223190, 17957104, 22446380, 44892760, 89785520]

約数ペア:

[(1, 89785520), (2, 44892760), (4, 22446380), (5, 17957104), (8, 11223190), (10, 8978552), (11, 8162320), (16, 5611595), (20, 4489276), (22, 4081160), (40, 2244638), (44, 2040580), (55, 1632464), (80, 1122319), (88, 1020290), (110, 816232), (176, 510145), (220, 408116), (257, 349360), (397, 226160), (440, 204058), (514, 174680), (794, 113080), (880, 102029), (1028, 87340), (1285, 69872), (1588, 56540), (1985, 45232), (2056, 43670), (2570, 34936), (2827, 31760), (3176, 28270), (3970, 22616), (4112, 21835), (4367, 20560), (5140, 17468), (5654, 15880), (6352, 14135), (7940, 11308), (8734, 10280)]