19642760

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1579}}^1$

素因数の和:1901

約数の個数: 32

約数和(自身を含む): 44366400

約数和(自身を除く): 24723640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 1579, 2488, 3110, 3158, 6220, 6316, 7895, 12440, 12632, 15790, 31580, 63160, 491069, 982138, 1964276, 2455345, 3928552, 4910690, 9821380, 19642760]

約数ペア:

[(1, 19642760), (2, 9821380), (4, 4910690), (5, 3928552), (8, 2455345), (10, 1964276), (20, 982138), (40, 491069), (311, 63160), (622, 31580), (1244, 15790), (1555, 12632), (1579, 12440), (2488, 7895), (3110, 6316), (3158, 6220)]