18240705

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{733}}^1$

素因数の和:830

約数の個数: 48

約数和(自身を含む): 36641280

約数和(自身を除く): 18400575

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 79, 105, 237, 315, 395, 553, 711, 733, 1185, 1659, 2199, 2765, 3555, 3665, 4977, 5131, 6597, 8295, 10995, 15393, 24885, 25655, 32985, 46179, 57907, 76965, 173721, 230895, 289535, 405349, 521163, 868605, 1216047, 2026745, 2605815, 3648141, 6080235, 18240705]

約数ペア:

[(1, 18240705), (3, 6080235), (5, 3648141), (7, 2605815), (9, 2026745), (15, 1216047), (21, 868605), (35, 521163), (45, 405349), (63, 289535), (79, 230895), (105, 173721), (237, 76965), (315, 57907), (395, 46179), (553, 32985), (711, 25655), (733, 24885), (1185, 15393), (1659, 10995), (2199, 8295), (2765, 6597), (3555, 5131), (3665, 4977)]