28053820

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{5869}}^1$

素因数の和:6117

約数の個数: 24

約数和(自身を含む): 59169600

約数和(自身を除く): 31115780

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 4780, 5869, 11738, 23476, 29345, 58690, 117380, 1402691, 2805382, 5610764, 7013455, 14026910, 28053820]

約数ペア:

[(1, 28053820), (2, 14026910), (4, 7013455), (5, 5610764), (10, 2805382), (20, 1402691), (239, 117380), (478, 58690), (956, 29345), (1195, 23476), (2390, 11738), (4780, 5869)]