7850180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{277}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 17981040

約数和(自身を除く): 10130860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 277, 436, 545, 554, 1090, 1108, 1385, 1417, 2180, 2770, 2834, 3601, 5540, 5668, 7085, 7202, 14170, 14404, 18005, 28340, 30193, 36010, 60386, 72020, 120772, 150965, 301930, 392509, 603860, 785018, 1570036, 1962545, 3925090, 7850180]

約数ペア:

[(1, 7850180), (2, 3925090), (4, 1962545), (5, 1570036), (10, 785018), (13, 603860), (20, 392509), (26, 301930), (52, 150965), (65, 120772), (109, 72020), (130, 60386), (218, 36010), (260, 30193), (277, 28340), (436, 18005), (545, 14404), (554, 14170), (1090, 7202), (1108, 7085), (1385, 5668), (1417, 5540), (2180, 3601), (2770, 2834)]