209597640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{249521}}^1$

素因数の和:249542

約数の個数: 64

約数和(自身を含む): 718623360

約数和(自身を除く): 509025720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 249521, 499042, 748563, 998084, 1247605, 1497126, 1746647, 1996168, 2495210, 2994252, 3493294, 3742815, 4990420, 5239941, 5988504, 6986588, 7485630, 8733235, 9980840, 10479882, 13973176, 14971260, 17466470, 20959764, 26199705, 29942520, 34932940, 41919528, 52399410, 69865880, 104798820, 209597640]

約数ペア:

[(1, 209597640), (2, 104798820), (3, 69865880), (4, 52399410), (5, 41919528), (6, 34932940), (7, 29942520), (8, 26199705), (10, 20959764), (12, 17466470), (14, 14971260), (15, 13973176), (20, 10479882), (21, 9980840), (24, 8733235), (28, 7485630), (30, 6986588), (35, 5988504), (40, 5239941), (42, 4990420), (56, 3742815), (60, 3493294), (70, 2994252), (84, 2495210), (105, 1996168), (120, 1746647), (140, 1497126), (168, 1247605), (210, 998084), (280, 748563), (420, 499042), (840, 249521)]