17718820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1889}}^1$

素因数の和:1972

約数の個数: 48

約数和(自身を含む): 43182720

約数和(自身を除く): 25463900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 335, 469, 670, 938, 1340, 1876, 1889, 2345, 3778, 4690, 7556, 9380, 9445, 13223, 18890, 26446, 37780, 52892, 66115, 126563, 132230, 253126, 264460, 506252, 632815, 885941, 1265630, 1771882, 2531260, 3543764, 4429705, 8859410, 17718820]

約数ペア:

[(1, 17718820), (2, 8859410), (4, 4429705), (5, 3543764), (7, 2531260), (10, 1771882), (14, 1265630), (20, 885941), (28, 632815), (35, 506252), (67, 264460), (70, 253126), (134, 132230), (140, 126563), (268, 66115), (335, 52892), (469, 37780), (670, 26446), (938, 18890), (1340, 13223), (1876, 9445), (1889, 9380), (2345, 7556), (3778, 4690)]