19905445

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{809}}^1$

素因数の和:877

約数の個数: 32

約数和(自身を含む): 29548800

約数和(自身を除く): 9643355

約数列:

[1, 5, 7, 19, 35, 37, 95, 133, 185, 259, 665, 703, 809, 1295, 3515, 4045, 4921, 5663, 15371, 24605, 28315, 29933, 76855, 107597, 149665, 209531, 537985, 568727, 1047655, 2843635, 3981089, 19905445]

約数ペア:

[(1, 19905445), (5, 3981089), (7, 2843635), (19, 1047655), (35, 568727), (37, 537985), (95, 209531), (133, 149665), (185, 107597), (259, 76855), (665, 29933), (703, 28315), (809, 24605), (1295, 15371), (3515, 5663), (4045, 4921)]