1280367730

素因数分解:

$2^1\times 5^1\times {\mathrm{1601}}^1\times {\mathrm{79973}}^1$

素因数の和:81581

約数の個数: 16

約数和(自身を含む): 2306130264

約数和(自身を除く): 1025762534

約数列:

[1, 2, 5, 10, 1601, 3202, 8005, 16010, 79973, 159946, 399865, 799730, 128036773, 256073546, 640183865, 1280367730]

約数ペア:

[(1, 1280367730), (2, 640183865), (5, 256073546), (10, 128036773), (1601, 799730), (3202, 399865), (8005, 159946), (16010, 79973)]