19706760

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:348

約数の個数: 128

約数和(自身を含む): 66873600

約数和(自身を除く): 47166840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 71, 72, 90, 108, 120, 135, 142, 180, 213, 216, 257, 270, 284, 355, 360, 426, 514, 540, 568, 639, 710, 771, 852, 1028, 1065, 1080, 1278, 1285, 1420, 1542, 1704, 1917, 2056, 2130, 2313, 2556, 2570, 2840, 3084, 3195, 3834, 3855, 4260, 4626, 5112, 5140, 6168, 6390, 6939, 7668, 7710, 8520, 9252, 9585, 10280, 11565, 12780, 13878, 15336, 15420, 18247, 18504, 19170, 23130, 25560, 27756, 30840, 34695, 36494, 38340, 46260, 54741, 55512, 69390, 72988, 76680, 91235, 92520, 109482, 138780, 145976, 164223, 182470, 218964, 273705, 277560, 328446, 364940, 437928, 492669, 547410, 656892, 729880, 821115, 985338, 1094820, 1313784, 1642230, 1970676, 2189640, 2463345, 3284460, 3941352, 4926690, 6568920, 9853380, 19706760]

約数ペア:

[(1, 19706760), (2, 9853380), (3, 6568920), (4, 4926690), (5, 3941352), (6, 3284460), (8, 2463345), (9, 2189640), (10, 1970676), (12, 1642230), (15, 1313784), (18, 1094820), (20, 985338), (24, 821115), (27, 729880), (30, 656892), (36, 547410), (40, 492669), (45, 437928), (54, 364940), (60, 328446), (71, 277560), (72, 273705), (90, 218964), (108, 182470), (120, 164223), (135, 145976), (142, 138780), (180, 109482), (213, 92520), (216, 91235), (257, 76680), (270, 72988), (284, 69390), (355, 55512), (360, 54741), (426, 46260), (514, 38340), (540, 36494), (568, 34695), (639, 30840), (710, 27756), (771, 25560), (852, 23130), (1028, 19170), (1065, 18504), (1080, 18247), (1278, 15420), (1285, 15336), (1420, 13878), (1542, 12780), (1704, 11565), (1917, 10280), (2056, 9585), (2130, 9252), (2313, 8520), (2556, 7710), (2570, 7668), (2840, 6939), (3084, 6390), (3195, 6168), (3834, 5140), (3855, 5112), (4260, 4626)]