19870896

素因数分解:

$2^4\times 3^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{439}}^1$

素因数の和:514

約数の個数: 80

約数和(自身を含む): 54996480

約数和(自身を除く): 35125584

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 41, 46, 48, 69, 82, 92, 123, 138, 164, 184, 246, 276, 328, 368, 439, 492, 552, 656, 878, 943, 984, 1104, 1317, 1756, 1886, 1968, 2634, 2829, 3512, 3772, 5268, 5658, 7024, 7544, 10097, 10536, 11316, 15088, 17999, 20194, 21072, 22632, 30291, 35998, 40388, 45264, 53997, 60582, 71996, 80776, 107994, 121164, 143992, 161552, 215988, 242328, 287984, 413977, 431976, 484656, 827954, 863952, 1241931, 1655908, 2483862, 3311816, 4967724, 6623632, 9935448, 19870896]

約数ペア:

[(1, 19870896), (2, 9935448), (3, 6623632), (4, 4967724), (6, 3311816), (8, 2483862), (12, 1655908), (16, 1241931), (23, 863952), (24, 827954), (41, 484656), (46, 431976), (48, 413977), (69, 287984), (82, 242328), (92, 215988), (123, 161552), (138, 143992), (164, 121164), (184, 107994), (246, 80776), (276, 71996), (328, 60582), (368, 53997), (439, 45264), (492, 40388), (552, 35998), (656, 30291), (878, 22632), (943, 21072), (984, 20194), (1104, 17999), (1317, 15088), (1756, 11316), (1886, 10536), (1968, 10097), (2634, 7544), (2829, 7024), (3512, 5658), (3772, 5268)]