19493360

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1753}}^1$

素因数の和:1905

約数の個数: 40

約数和(自身を含む): 45674160

約数和(自身を除く): 26180800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 1753, 2224, 2780, 3506, 5560, 7012, 8765, 11120, 14024, 17530, 28048, 35060, 70120, 140240, 243667, 487334, 974668, 1218335, 1949336, 2436670, 3898672, 4873340, 9746680, 19493360]

約数ペア:

[(1, 19493360), (2, 9746680), (4, 4873340), (5, 3898672), (8, 2436670), (10, 1949336), (16, 1218335), (20, 974668), (40, 487334), (80, 243667), (139, 140240), (278, 70120), (556, 35060), (695, 28048), (1112, 17530), (1390, 14024), (1753, 11120), (2224, 8765), (2780, 7012), (3506, 5560)]