28050220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:271

約数の個数: 72

約数和(自身を含む): 66093552

約数和(自身を除く): 38043332

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 67, 110, 121, 134, 173, 220, 242, 268, 335, 346, 484, 605, 670, 692, 737, 865, 1210, 1340, 1474, 1730, 1903, 2420, 2948, 3460, 3685, 3806, 7370, 7612, 8107, 9515, 11591, 14740, 16214, 19030, 20933, 23182, 32428, 38060, 40535, 41866, 46364, 57955, 81070, 83732, 104665, 115910, 127501, 162140, 209330, 231820, 255002, 418660, 510004, 637505, 1275010, 1402511, 2550020, 2805022, 5610044, 7012555, 14025110, 28050220]

約数ペア:

[(1, 28050220), (2, 14025110), (4, 7012555), (5, 5610044), (10, 2805022), (11, 2550020), (20, 1402511), (22, 1275010), (44, 637505), (55, 510004), (67, 418660), (110, 255002), (121, 231820), (134, 209330), (173, 162140), (220, 127501), (242, 115910), (268, 104665), (335, 83732), (346, 81070), (484, 57955), (605, 46364), (670, 41866), (692, 40535), (737, 38060), (865, 32428), (1210, 23182), (1340, 20933), (1474, 19030), (1730, 16214), (1903, 14740), (2420, 11591), (2948, 9515), (3460, 8107), (3685, 7612), (3806, 7370)]