39720850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1153}}^1$

素因数の和:1231

約数の個数: 48

約数和(自身を含む): 81135432

約数和(自身を除く): 41414582

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 53, 65, 106, 130, 265, 325, 530, 650, 689, 1153, 1325, 1378, 2306, 2650, 3445, 5765, 6890, 11530, 14989, 17225, 28825, 29978, 34450, 57650, 61109, 74945, 122218, 149890, 305545, 374725, 611090, 749450, 794417, 1527725, 1588834, 3055450, 3972085, 7944170, 19860425, 39720850]

約数ペア:

[(1, 39720850), (2, 19860425), (5, 7944170), (10, 3972085), (13, 3055450), (25, 1588834), (26, 1527725), (50, 794417), (53, 749450), (65, 611090), (106, 374725), (130, 305545), (265, 149890), (325, 122218), (530, 74945), (650, 61109), (689, 57650), (1153, 34450), (1325, 29978), (1378, 28825), (2306, 17225), (2650, 14989), (3445, 11530), (5765, 6890)]