140974780

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{27427}}^1$

素因数の和:27693

約数の個数: 24

約数和(自身を含む): 297209808

約数和(自身を除く): 156235028

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 27427, 54854, 109708, 137135, 274270, 548540, 7048739, 14097478, 28194956, 35243695, 70487390, 140974780]

約数ペア:

[(1, 140974780), (2, 70487390), (4, 35243695), (5, 28194956), (10, 14097478), (20, 7048739), (257, 548540), (514, 274270), (1028, 137135), (1285, 109708), (2570, 54854), (5140, 27427)]