128833220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{105601}}^1$

素因数の和:105671

約数の個数: 24

約数和(自身を含む): 274987608

約数和(自身を除く): 146154388

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 105601, 211202, 422404, 528005, 1056010, 2112020, 6441661, 12883322, 25766644, 32208305, 64416610, 128833220]

約数ペア:

[(1, 128833220), (2, 64416610), (4, 32208305), (5, 25766644), (10, 12883322), (20, 6441661), (61, 2112020), (122, 1056010), (244, 528005), (305, 422404), (610, 211202), (1220, 105601)]