18005640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{227}}^1\times {\mathrm{661}}^1$

素因数の和:902

約数の個数: 64

約数和(自身を含む): 54336960

約数和(自身を除く): 36331320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 227, 454, 661, 681, 908, 1135, 1322, 1362, 1816, 1983, 2270, 2644, 2724, 3305, 3405, 3966, 4540, 5288, 5448, 6610, 6810, 7932, 9080, 9915, 13220, 13620, 15864, 19830, 26440, 27240, 39660, 79320, 150047, 300094, 450141, 600188, 750235, 900282, 1200376, 1500470, 1800564, 2250705, 3000940, 3601128, 4501410, 6001880, 9002820, 18005640]

約数ペア:

[(1, 18005640), (2, 9002820), (3, 6001880), (4, 4501410), (5, 3601128), (6, 3000940), (8, 2250705), (10, 1800564), (12, 1500470), (15, 1200376), (20, 900282), (24, 750235), (30, 600188), (40, 450141), (60, 300094), (120, 150047), (227, 79320), (454, 39660), (661, 27240), (681, 26440), (908, 19830), (1135, 15864), (1322, 13620), (1362, 13220), (1816, 9915), (1983, 9080), (2270, 7932), (2644, 6810), (2724, 6610), (3305, 5448), (3405, 5288), (3966, 4540)]