20417328

素因数分解:

$2^4\times 3^2\times {\mathrm{71}}^1\times {\mathrm{1997}}^1$

素因数の和:2082

約数の個数: 60

約数和(自身を含む): 57973968

約数和(自身を除く): 37556640

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 71, 72, 142, 144, 213, 284, 426, 568, 639, 852, 1136, 1278, 1704, 1997, 2556, 3408, 3994, 5112, 5991, 7988, 10224, 11982, 15976, 17973, 23964, 31952, 35946, 47928, 71892, 95856, 141787, 143784, 283574, 287568, 425361, 567148, 850722, 1134296, 1276083, 1701444, 2268592, 2552166, 3402888, 5104332, 6805776, 10208664, 20417328]

約数ペア:

[(1, 20417328), (2, 10208664), (3, 6805776), (4, 5104332), (6, 3402888), (8, 2552166), (9, 2268592), (12, 1701444), (16, 1276083), (18, 1134296), (24, 850722), (36, 567148), (48, 425361), (71, 287568), (72, 283574), (142, 143784), (144, 141787), (213, 95856), (284, 71892), (426, 47928), (568, 35946), (639, 31952), (852, 23964), (1136, 17973), (1278, 15976), (1704, 11982), (1997, 10224), (2556, 7988), (3408, 5991), (3994, 5112)]