158985340

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{30931}}^1$

素因数の和:31197

約数の個数: 24

約数和(自身を含む): 335179152

約数和(自身を除く): 176193812

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 30931, 61862, 123724, 154655, 309310, 618620, 7949267, 15898534, 31797068, 39746335, 79492670, 158985340]

約数ペア:

[(1, 158985340), (2, 79492670), (4, 39746335), (5, 31797068), (10, 15898534), (20, 7949267), (257, 618620), (514, 309310), (1028, 154655), (1285, 123724), (2570, 61862), (5140, 30931)]