72484280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{641}}^1$

素因数の和:920

約数の個数: 64

約数和(自身を含む): 178886880

約数和(自身を除く): 106402600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 257, 440, 514, 641, 1028, 1282, 1285, 2056, 2564, 2570, 2827, 3205, 5128, 5140, 5654, 6410, 7051, 10280, 11308, 12820, 14102, 14135, 22616, 25640, 28204, 28270, 35255, 56408, 56540, 70510, 113080, 141020, 164737, 282040, 329474, 658948, 823685, 1317896, 1647370, 1812107, 3294740, 3624214, 6589480, 7248428, 9060535, 14496856, 18121070, 36242140, 72484280]

約数ペア:

[(1, 72484280), (2, 36242140), (4, 18121070), (5, 14496856), (8, 9060535), (10, 7248428), (11, 6589480), (20, 3624214), (22, 3294740), (40, 1812107), (44, 1647370), (55, 1317896), (88, 823685), (110, 658948), (220, 329474), (257, 282040), (440, 164737), (514, 141020), (641, 113080), (1028, 70510), (1282, 56540), (1285, 56408), (2056, 35255), (2564, 28270), (2570, 28204), (2827, 25640), (3205, 22616), (5128, 14135), (5140, 14102), (5654, 12820), (6410, 11308), (7051, 10280)]