20213024144

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{401}}^1\times {\mathrm{165811}}^1$

素因数の和:166239

約数の個数: 40

約数和(自身を含む): 41326982880

約数和(自身を除く): 21113958736

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 401, 802, 1604, 3208, 6416, 7619, 15238, 30476, 60952, 121904, 165811, 331622, 663244, 1326488, 2652976, 3150409, 6300818, 12601636, 25203272, 50406544, 66490211, 132980422, 265960844, 531921688, 1063843376, 1263314009, 2526628018, 5053256036, 10106512072, 20213024144]

約数ペア:

[(1, 20213024144), (2, 10106512072), (4, 5053256036), (8, 2526628018), (16, 1263314009), (19, 1063843376), (38, 531921688), (76, 265960844), (152, 132980422), (304, 66490211), (401, 50406544), (802, 25203272), (1604, 12601636), (3208, 6300818), (6416, 3150409), (7619, 2652976), (15238, 1326488), (30476, 663244), (60952, 331622), (121904, 165811)]