28225908

素因数分解:

$2^2\times 3^5\times {\mathrm{71}}^1\times {\mathrm{409}}^1$

素因数の和:499

約数の個数: 72

約数和(自身を含む): 75216960

約数和(自身を除く): 46991052

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 71, 81, 108, 142, 162, 213, 243, 284, 324, 409, 426, 486, 639, 818, 852, 972, 1227, 1278, 1636, 1917, 2454, 2556, 3681, 3834, 4908, 5751, 7362, 7668, 11043, 11502, 14724, 17253, 22086, 23004, 29039, 33129, 34506, 44172, 58078, 66258, 69012, 87117, 99387, 116156, 132516, 174234, 198774, 261351, 348468, 397548, 522702, 784053, 1045404, 1568106, 2352159, 3136212, 4704318, 7056477, 9408636, 14112954, 28225908]

約数ペア:

[(1, 28225908), (2, 14112954), (3, 9408636), (4, 7056477), (6, 4704318), (9, 3136212), (12, 2352159), (18, 1568106), (27, 1045404), (36, 784053), (54, 522702), (71, 397548), (81, 348468), (108, 261351), (142, 198774), (162, 174234), (213, 132516), (243, 116156), (284, 99387), (324, 87117), (409, 69012), (426, 66258), (486, 58078), (639, 44172), (818, 34506), (852, 33129), (972, 29039), (1227, 23004), (1278, 22086), (1636, 17253), (1917, 14724), (2454, 11502), (2556, 11043), (3681, 7668), (3834, 7362), (4908, 5751)]