19929860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{293}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 44452800

約数和(自身を除く): 24522940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 179, 190, 293, 358, 380, 586, 716, 895, 1172, 1465, 1790, 2930, 3401, 3580, 5567, 5860, 6802, 11134, 13604, 17005, 22268, 27835, 34010, 52447, 55670, 68020, 104894, 111340, 209788, 262235, 524470, 996493, 1048940, 1992986, 3985972, 4982465, 9964930, 19929860]

約数ペア:

[(1, 19929860), (2, 9964930), (4, 4982465), (5, 3985972), (10, 1992986), (19, 1048940), (20, 996493), (38, 524470), (76, 262235), (95, 209788), (179, 111340), (190, 104894), (293, 68020), (358, 55670), (380, 52447), (586, 34010), (716, 27835), (895, 22268), (1172, 17005), (1465, 13604), (1790, 11134), (2930, 6802), (3401, 5860), (3580, 5567)]