39999220

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1\times {\mathrm{283}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 87026688

約数和(自身を除く): 47027468

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 191, 283, 370, 382, 566, 740, 764, 955, 1132, 1415, 1910, 2830, 3820, 5660, 7067, 10471, 14134, 20942, 28268, 35335, 41884, 52355, 54053, 70670, 104710, 108106, 141340, 209420, 216212, 270265, 540530, 1081060, 1999961, 3999922, 7999844, 9999805, 19999610, 39999220]

約数ペア:

[(1, 39999220), (2, 19999610), (4, 9999805), (5, 7999844), (10, 3999922), (20, 1999961), (37, 1081060), (74, 540530), (148, 270265), (185, 216212), (191, 209420), (283, 141340), (370, 108106), (382, 104710), (566, 70670), (740, 54053), (764, 52355), (955, 41884), (1132, 35335), (1415, 28268), (1910, 20942), (2830, 14134), (3820, 10471), (5660, 7067)]