18720840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{156007}}^1$

素因数の和:156021

約数の個数: 32

約数和(自身を含む): 56162880

約数和(自身を除く): 37442040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 156007, 312014, 468021, 624028, 780035, 936042, 1248056, 1560070, 1872084, 2340105, 3120140, 3744168, 4680210, 6240280, 9360420, 18720840]

約数ペア:

[(1, 18720840), (2, 9360420), (3, 6240280), (4, 4680210), (5, 3744168), (6, 3120140), (8, 2340105), (10, 1872084), (12, 1560070), (15, 1248056), (20, 936042), (24, 780035), (30, 624028), (40, 468021), (60, 312014), (120, 156007)]