18203920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{32507}}^1$

素因数の和:32527

約数の個数: 40

約数和(自身を含む): 48371904

約数和(自身を除く): 30167984

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 32507, 65014, 130028, 162535, 227549, 260056, 325070, 455098, 520112, 650140, 910196, 1137745, 1300280, 1820392, 2275490, 2600560, 3640784, 4550980, 9101960, 18203920]

約数ペア:

[(1, 18203920), (2, 9101960), (4, 4550980), (5, 3640784), (7, 2600560), (8, 2275490), (10, 1820392), (14, 1300280), (16, 1137745), (20, 910196), (28, 650140), (35, 520112), (40, 455098), (56, 325070), (70, 260056), (80, 227549), (112, 162535), (140, 130028), (280, 65014), (560, 32507)]