80398880

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{499}}^1$

素因数の和:586

約数の個数: 96

約数和(自身を含む): 204120000

約数和(自身を除く): 123721120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 53, 76, 80, 95, 106, 152, 160, 190, 212, 265, 304, 380, 424, 499, 530, 608, 760, 848, 998, 1007, 1060, 1520, 1696, 1996, 2014, 2120, 2495, 3040, 3992, 4028, 4240, 4990, 5035, 7984, 8056, 8480, 9481, 9980, 10070, 15968, 16112, 18962, 19960, 20140, 26447, 32224, 37924, 39920, 40280, 47405, 52894, 75848, 79840, 80560, 94810, 105788, 132235, 151696, 161120, 189620, 211576, 264470, 303392, 379240, 423152, 502493, 528940, 758480, 846304, 1004986, 1057880, 1516960, 2009972, 2115760, 2512465, 4019944, 4231520, 5024930, 8039888, 10049860, 16079776, 20099720, 40199440, 80398880]

約数ペア:

[(1, 80398880), (2, 40199440), (4, 20099720), (5, 16079776), (8, 10049860), (10, 8039888), (16, 5024930), (19, 4231520), (20, 4019944), (32, 2512465), (38, 2115760), (40, 2009972), (53, 1516960), (76, 1057880), (80, 1004986), (95, 846304), (106, 758480), (152, 528940), (160, 502493), (190, 423152), (212, 379240), (265, 303392), (304, 264470), (380, 211576), (424, 189620), (499, 161120), (530, 151696), (608, 132235), (760, 105788), (848, 94810), (998, 80560), (1007, 79840), (1060, 75848), (1520, 52894), (1696, 47405), (1996, 40280), (2014, 39920), (2120, 37924), (2495, 32224), (3040, 26447), (3992, 20140), (4028, 19960), (4240, 18962), (4990, 16112), (5035, 15968), (7984, 10070), (8056, 9980), (8480, 9481)]