19972440

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{18493}}^1$

素因数の和:18513

約数の個数: 64

約数和(自身を含む): 66578400

約数和(自身を除く): 46605960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 18493, 36986, 55479, 73972, 92465, 110958, 147944, 166437, 184930, 221916, 277395, 332874, 369860, 443832, 499311, 554790, 665748, 739720, 832185, 998622, 1109580, 1331496, 1664370, 1997244, 2219160, 2496555, 3328740, 3994488, 4993110, 6657480, 9986220, 19972440]

約数ペア:

[(1, 19972440), (2, 9986220), (3, 6657480), (4, 4993110), (5, 3994488), (6, 3328740), (8, 2496555), (9, 2219160), (10, 1997244), (12, 1664370), (15, 1331496), (18, 1109580), (20, 998622), (24, 832185), (27, 739720), (30, 665748), (36, 554790), (40, 499311), (45, 443832), (54, 369860), (60, 332874), (72, 277395), (90, 221916), (108, 184930), (120, 166437), (135, 147944), (180, 110958), (216, 92465), (270, 73972), (360, 55479), (540, 36986), (1080, 18493)]