129786940

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{49537}}^1$

素因数の和:49677

約数の個数: 24

約数和(自身を含む): 274638672

約数和(自身を除く): 144851732

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 49537, 99074, 198148, 247685, 495370, 990740, 6489347, 12978694, 25957388, 32446735, 64893470, 129786940]

約数ペア:

[(1, 129786940), (2, 64893470), (4, 32446735), (5, 25957388), (10, 12978694), (20, 6489347), (131, 990740), (262, 495370), (524, 247685), (655, 198148), (1310, 99074), (2620, 49537)]