200528140

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{283}}^1\times {\mathrm{499}}^1$

素因数の和:862

約数の個数: 48

約数和(自身を含む): 429408000

約数和(自身を除く): 228879860

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 283, 284, 355, 499, 566, 710, 998, 1132, 1415, 1420, 1996, 2495, 2830, 4990, 5660, 9980, 20093, 35429, 40186, 70858, 80372, 100465, 141217, 141716, 177145, 200930, 282434, 354290, 401860, 564868, 706085, 708580, 1412170, 2824340, 10026407, 20052814, 40105628, 50132035, 100264070, 200528140]

約数ペア:

[(1, 200528140), (2, 100264070), (4, 50132035), (5, 40105628), (10, 20052814), (20, 10026407), (71, 2824340), (142, 1412170), (283, 708580), (284, 706085), (355, 564868), (499, 401860), (566, 354290), (710, 282434), (998, 200930), (1132, 177145), (1415, 141716), (1420, 141217), (1996, 100465), (2495, 80372), (2830, 70858), (4990, 40186), (5660, 35429), (9980, 20093)]