67801720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{463}}^1\times {\mathrm{523}}^1$

素因数の和:1004

約数の個数: 64

約数和(自身を含む): 175057920

約数和(自身を除く): 107256200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 463, 523, 926, 1046, 1852, 2092, 2315, 2615, 3241, 3661, 3704, 4184, 4630, 5230, 6482, 7322, 9260, 10460, 12964, 14644, 16205, 18305, 18520, 20920, 25928, 29288, 32410, 36610, 64820, 73220, 129640, 146440, 242149, 484298, 968596, 1210745, 1695043, 1937192, 2421490, 3390086, 4842980, 6780172, 8475215, 9685960, 13560344, 16950430, 33900860, 67801720]

約数ペア:

[(1, 67801720), (2, 33900860), (4, 16950430), (5, 13560344), (7, 9685960), (8, 8475215), (10, 6780172), (14, 4842980), (20, 3390086), (28, 2421490), (35, 1937192), (40, 1695043), (56, 1210745), (70, 968596), (140, 484298), (280, 242149), (463, 146440), (523, 129640), (926, 73220), (1046, 64820), (1852, 36610), (2092, 32410), (2315, 29288), (2615, 25928), (3241, 20920), (3661, 18520), (3704, 18305), (4184, 16205), (4630, 14644), (5230, 12964), (6482, 10460), (7322, 9260)]