19560080

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1759}}^1$

素因数の和:1911

約数の個数: 40

約数和(自身を含む): 45830400

約数和(自身を除く): 26270320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 1759, 2224, 2780, 3518, 5560, 7036, 8795, 11120, 14072, 17590, 28144, 35180, 70360, 140720, 244501, 489002, 978004, 1222505, 1956008, 2445010, 3912016, 4890020, 9780040, 19560080]

約数ペア:

[(1, 19560080), (2, 9780040), (4, 4890020), (5, 3912016), (8, 2445010), (10, 1956008), (16, 1222505), (20, 978004), (40, 489002), (80, 244501), (139, 140720), (278, 70360), (556, 35180), (695, 28144), (1112, 17590), (1390, 14072), (1759, 11120), (2224, 8795), (2780, 7036), (3518, 5560)]