20747880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19211}}^1$

素因数の和:19231

約数の個数: 64

約数和(自身を含む): 69163200

約数和(自身を除く): 48415320

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, 19211, 38422, 57633, 76844, 96055, 115266, 153688, 172899, 192110, 230532, 288165, 345798, 384220, 461064, 518697, 576330, 691596, 768440, 864495, 1037394, 1152660, 1383192, 1728990, 2074788, 2305320, 2593485, 3457980, 4149576, 5186970, 6915960, 10373940, 20747880]

約数ペア:

[(1, 20747880), (2, 10373940), (3, 6915960), (4, 5186970), (5, 4149576), (6, 3457980), (8, 2593485), (9, 2305320), (10, 2074788), (12, 1728990), (15, 1383192), (18, 1152660), (20, 1037394), (24, 864495), (27, 768440), (30, 691596), (36, 576330), (40, 518697), (45, 461064), (54, 384220), (60, 345798), (72, 288165), (90, 230532), (108, 192110), (120, 172899), (135, 153688), (180, 115266), (216, 96055), (270, 76844), (360, 57633), (540, 38422), (1080, 19211)]