13985860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{353}}^1$

素因数の和:652

約数の個数: 48

約数和(自身を含む): 33780096

約数和(自身を除く): 19794236

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 283, 353, 566, 706, 1132, 1412, 1415, 1765, 1981, 2471, 2830, 3530, 3962, 4942, 5660, 7060, 7924, 9884, 9905, 12355, 19810, 24710, 39620, 49420, 99899, 199798, 399596, 499495, 699293, 998990, 1398586, 1997980, 2797172, 3496465, 6992930, 13985860]

約数ペア:

[(1, 13985860), (2, 6992930), (4, 3496465), (5, 2797172), (7, 1997980), (10, 1398586), (14, 998990), (20, 699293), (28, 499495), (35, 399596), (70, 199798), (140, 99899), (283, 49420), (353, 39620), (566, 24710), (706, 19810), (1132, 12355), (1412, 9905), (1415, 9884), (1765, 7924), (1981, 7060), (2471, 5660), (2830, 4942), (3530, 3962)]