19964360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38393}}^1$

素因数の和:38417

約数の個数: 32

約数和(自身を含む): 48376440

約数和(自身を除く): 28412080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38393, 76786, 153572, 191965, 307144, 383930, 499109, 767860, 998218, 1535720, 1996436, 2495545, 3992872, 4991090, 9982180, 19964360]

約数ペア:

[(1, 19964360), (2, 9982180), (4, 4991090), (5, 3992872), (8, 2495545), (10, 1996436), (13, 1535720), (20, 998218), (26, 767860), (40, 499109), (52, 383930), (65, 307144), (104, 191965), (130, 153572), (260, 76786), (520, 38393)]