257400496

素因数分解:

$2^4\times {\mathrm{281}}^1\times {\mathrm{57251}}^1$

素因数の和:57540

約数の個数: 20

約数和(自身を含む): 500496984

約数和(自身を除く): 243096488

約数列:

[1, 2, 4, 8, 16, 281, 562, 1124, 2248, 4496, 57251, 114502, 229004, 458008, 916016, 16087531, 32175062, 64350124, 128700248, 257400496]

約数ペア:

[(1, 257400496), (2, 128700248), (4, 64350124), (8, 32175062), (16, 16087531), (281, 916016), (562, 458008), (1124, 229004), (2248, 114502), (4496, 57251)]