19941880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1063}}^1$

素因数の和:1148

約数の個数: 64

約数和(自身を含む): 52093440

約数和(自身を除く): 32151560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 67, 70, 134, 140, 268, 280, 335, 469, 536, 670, 938, 1063, 1340, 1876, 2126, 2345, 2680, 3752, 4252, 4690, 5315, 7441, 8504, 9380, 10630, 14882, 18760, 21260, 29764, 37205, 42520, 59528, 71221, 74410, 142442, 148820, 284884, 297640, 356105, 498547, 569768, 712210, 997094, 1424420, 1994188, 2492735, 2848840, 3988376, 4985470, 9970940, 19941880]

約数ペア:

[(1, 19941880), (2, 9970940), (4, 4985470), (5, 3988376), (7, 2848840), (8, 2492735), (10, 1994188), (14, 1424420), (20, 997094), (28, 712210), (35, 569768), (40, 498547), (56, 356105), (67, 297640), (70, 284884), (134, 148820), (140, 142442), (268, 74410), (280, 71221), (335, 59528), (469, 42520), (536, 37205), (670, 29764), (938, 21260), (1063, 18760), (1340, 14882), (1876, 10630), (2126, 9380), (2345, 8504), (2680, 7441), (3752, 5315), (4252, 4690)]