28186100

素因数分解:

$2^2\times 5^2\times {\mathrm{521}}^1\times {\mathrm{541}}^1$

素因数の和:1076

約数の個数: 36

約数和(自身を含む): 61394508

約数和(自身を除く): 33208408

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 521, 541, 1042, 1082, 2084, 2164, 2605, 2705, 5210, 5410, 10420, 10820, 13025, 13525, 26050, 27050, 52100, 54100, 281861, 563722, 1127444, 1409305, 2818610, 5637220, 7046525, 14093050, 28186100]

約数ペア:

[(1, 28186100), (2, 14093050), (4, 7046525), (5, 5637220), (10, 2818610), (20, 1409305), (25, 1127444), (50, 563722), (100, 281861), (521, 54100), (541, 52100), (1042, 27050), (1082, 26050), (2084, 13525), (2164, 13025), (2605, 10820), (2705, 10420), (5210, 5410)]