638476

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:325

約数の個数: 24

約数和(自身を含む): 1218560

約数和(自身を除く): 580084

約数列:

[1, 2, 4, 19, 31, 38, 62, 76, 124, 271, 542, 589, 1084, 1178, 2356, 5149, 8401, 10298, 16802, 20596, 33604, 159619, 319238, 638476]

約数ペア:

[(1, 638476), (2, 319238), (4, 159619), (19, 33604), (31, 20596), (38, 16802), (62, 10298), (76, 8401), (124, 5149), (271, 2356), (542, 1178), (589, 1084)]