130240040

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{66449}}^1$

素因数の和:66474

約数の個数: 48

約数和(自身を含む): 340888500

約数和(自身を除く): 210648460

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 66449, 132898, 265796, 332245, 465143, 531592, 664490, 930286, 1328980, 1860572, 2325715, 2657960, 3256001, 3721144, 4651430, 6512002, 9302860, 13024004, 16280005, 18605720, 26048008, 32560010, 65120020, 130240040]

約数ペア:

[(1, 130240040), (2, 65120020), (4, 32560010), (5, 26048008), (7, 18605720), (8, 16280005), (10, 13024004), (14, 9302860), (20, 6512002), (28, 4651430), (35, 3721144), (40, 3256001), (49, 2657960), (56, 2325715), (70, 1860572), (98, 1328980), (140, 930286), (196, 664490), (245, 531592), (280, 465143), (392, 332245), (490, 265796), (980, 132898), (1960, 66449)]