72211480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{164117}}^1$

素因数の和:164139

約数の個数: 32

約数和(自身を含む): 177247440

約数和(自身を除く): 105035960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 164117, 328234, 656468, 820585, 1312936, 1641170, 1805287, 3282340, 3610574, 6564680, 7221148, 9026435, 14442296, 18052870, 36105740, 72211480]

約数ペア:

[(1, 72211480), (2, 36105740), (4, 18052870), (5, 14442296), (8, 9026435), (10, 7221148), (11, 6564680), (20, 3610574), (22, 3282340), (40, 1805287), (44, 1641170), (55, 1312936), (88, 820585), (110, 656468), (220, 328234), (440, 164117)]