255985840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{1523}}^1$

素因数の和:1738

約数の個数: 80

約数和(自身を含む): 653101056

約数和(自身を除く): 397115216

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 191, 220, 382, 440, 764, 880, 955, 1523, 1528, 1910, 2101, 3046, 3056, 3820, 4202, 6092, 7615, 7640, 8404, 10505, 12184, 15230, 15280, 16753, 16808, 21010, 24368, 30460, 33506, 33616, 42020, 60920, 67012, 83765, 84040, 121840, 134024, 167530, 168080, 268048, 290893, 335060, 581786, 670120, 1163572, 1340240, 1454465, 2327144, 2908930, 3199823, 4654288, 5817860, 6399646, 11635720, 12799292, 15999115, 23271440, 25598584, 31998230, 51197168, 63996460, 127992920, 255985840]

約数ペア:

[(1, 255985840), (2, 127992920), (4, 63996460), (5, 51197168), (8, 31998230), (10, 25598584), (11, 23271440), (16, 15999115), (20, 12799292), (22, 11635720), (40, 6399646), (44, 5817860), (55, 4654288), (80, 3199823), (88, 2908930), (110, 2327144), (176, 1454465), (191, 1340240), (220, 1163572), (382, 670120), (440, 581786), (764, 335060), (880, 290893), (955, 268048), (1523, 168080), (1528, 167530), (1910, 134024), (2101, 121840), (3046, 84040), (3056, 83765), (3820, 67012), (4202, 60920), (6092, 42020), (7615, 33616), (7640, 33506), (8404, 30460), (10505, 24368), (12184, 21010), (15230, 16808), (15280, 16753)]