156724280

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{21647}}^1$

素因数の和:21839

約数の個数: 32

約数和(自身を含む): 354594240

約数和(自身を除く): 197869960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 3620, 7240, 21647, 43294, 86588, 108235, 173176, 216470, 432940, 865880, 3918107, 7836214, 15672428, 19590535, 31344856, 39181070, 78362140, 156724280]

約数ペア:

[(1, 156724280), (2, 78362140), (4, 39181070), (5, 31344856), (8, 19590535), (10, 15672428), (20, 7836214), (40, 3918107), (181, 865880), (362, 432940), (724, 216470), (905, 173176), (1448, 108235), (1810, 86588), (3620, 43294), (7240, 21647)]