20259700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{10663}}^1$

素因数の和:10696

約数の個数: 36

約数和(自身を含む): 46281760

約数和(自身を除く): 26022060

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 10663, 21326, 42652, 53315, 106630, 202597, 213260, 266575, 405194, 533150, 810388, 1012985, 1066300, 2025970, 4051940, 5064925, 10129850, 20259700]

約数ペア:

[(1, 20259700), (2, 10129850), (4, 5064925), (5, 4051940), (10, 2025970), (19, 1066300), (20, 1012985), (25, 810388), (38, 533150), (50, 405194), (76, 266575), (95, 213260), (100, 202597), (190, 106630), (380, 53315), (475, 42652), (950, 21326), (1900, 10663)]