28524820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{227}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 61746048

約数和(自身を除く): 33221228

約数列:

[1, 2, 4, 5, 10, 20, 61, 103, 122, 206, 227, 244, 305, 412, 454, 515, 610, 908, 1030, 1135, 1220, 2060, 2270, 4540, 6283, 12566, 13847, 23381, 25132, 27694, 31415, 46762, 55388, 62830, 69235, 93524, 116905, 125660, 138470, 233810, 276940, 467620, 1426241, 2852482, 5704964, 7131205, 14262410, 28524820]

約数ペア:

[(1, 28524820), (2, 14262410), (4, 7131205), (5, 5704964), (10, 2852482), (20, 1426241), (61, 467620), (103, 276940), (122, 233810), (206, 138470), (227, 125660), (244, 116905), (305, 93524), (412, 69235), (454, 62830), (515, 55388), (610, 46762), (908, 31415), (1030, 27694), (1135, 25132), (1220, 23381), (2060, 13847), (2270, 12566), (4540, 6283)]