18468580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{283}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 42081984

約数和(自身を除く): 23613404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 251, 260, 283, 502, 566, 1004, 1132, 1255, 1415, 2510, 2830, 3263, 3679, 5020, 5660, 6526, 7358, 13052, 14716, 16315, 18395, 32630, 36790, 65260, 71033, 73580, 142066, 284132, 355165, 710330, 923429, 1420660, 1846858, 3693716, 4617145, 9234290, 18468580]

約数ペア:

[(1, 18468580), (2, 9234290), (4, 4617145), (5, 3693716), (10, 1846858), (13, 1420660), (20, 923429), (26, 710330), (52, 355165), (65, 284132), (130, 142066), (251, 73580), (260, 71033), (283, 65260), (502, 36790), (566, 32630), (1004, 18395), (1132, 16315), (1255, 14716), (1415, 13052), (2510, 7358), (2830, 6526), (3263, 5660), (3679, 5020)]