19538620

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{5647}}^1$

素因数の和:5829

約数の個数: 24

約数和(自身を含む): 41275584

約数和(自身を除く): 21736964

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 5647, 11294, 22588, 28235, 56470, 112940, 976931, 1953862, 3907724, 4884655, 9769310, 19538620]

約数ペア:

[(1, 19538620), (2, 9769310), (4, 4884655), (5, 3907724), (10, 1953862), (20, 976931), (173, 112940), (346, 56470), (692, 28235), (865, 22588), (1730, 11294), (3460, 5647)]