218490190

素因数分解:

$2^1\times 5^1\times {\mathrm{1231}}^1\times {\mathrm{17749}}^1$

素因数の和:18987

約数の個数: 16

約数和(自身を含む): 393624000

約数和(自身を除く): 175133810

約数列:

[1, 2, 5, 10, 1231, 2462, 6155, 12310, 17749, 35498, 88745, 177490, 21849019, 43698038, 109245095, 218490190]

約数ペア:

[(1, 218490190), (2, 109245095), (5, 43698038), (10, 21849019), (1231, 177490), (2462, 88745), (6155, 35498), (12310, 17749)]