42451780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{859}}^1$

素因数の和:1228

約数の個数: 48

約数和(自身を含む): 102291840

約数和(自身を除く): 59840060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 353, 706, 859, 1412, 1718, 1765, 2471, 3436, 3530, 4295, 4942, 6013, 7060, 8590, 9884, 12026, 12355, 17180, 24052, 24710, 30065, 49420, 60130, 120260, 303227, 606454, 1212908, 1516135, 2122589, 3032270, 4245178, 6064540, 8490356, 10612945, 21225890, 42451780]

約数ペア:

[(1, 42451780), (2, 21225890), (4, 10612945), (5, 8490356), (7, 6064540), (10, 4245178), (14, 3032270), (20, 2122589), (28, 1516135), (35, 1212908), (70, 606454), (140, 303227), (353, 120260), (706, 60130), (859, 49420), (1412, 30065), (1718, 24710), (1765, 24052), (2471, 17180), (3436, 12355), (3530, 12026), (4295, 9884), (4942, 8590), (6013, 7060)]