20123258312

素因数分解:

$2^3\times {\mathrm{257}}^1\times {\mathrm{9787577}}^1$

素因数の和:9787840

約数の個数: 16

約数和(自身を含む): 37877926860

約数和(自身を除く): 17754668548

約数列:

[1, 2, 4, 8, 257, 514, 1028, 2056, 9787577, 19575154, 39150308, 78300616, 2515407289, 5030814578, 10061629156, 20123258312]

約数ペア:

[(1, 20123258312), (2, 10061629156), (4, 5030814578), (8, 2515407289), (257, 78300616), (514, 39150308), (1028, 19575154), (2056, 9787577)]