80538910

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{6949}}^1$

素因数の和:7036

約数の個数: 32

約数和(自身を含む): 155124000

約数和(自身を除く): 74585090

約数列:

[1, 2, 5, 10, 19, 38, 61, 95, 122, 190, 305, 610, 1159, 2318, 5795, 6949, 11590, 13898, 34745, 69490, 132031, 264062, 423889, 660155, 847778, 1320310, 2119445, 4238890, 8053891, 16107782, 40269455, 80538910]

約数ペア:

[(1, 80538910), (2, 40269455), (5, 16107782), (10, 8053891), (19, 4238890), (38, 2119445), (61, 1320310), (95, 847778), (122, 660155), (190, 423889), (305, 264062), (610, 132031), (1159, 69490), (2318, 34745), (5795, 13898), (6949, 11590)]