129771220

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{49531}}^1$

素因数の和:49671

約数の個数: 24

約数和(自身を含む): 274605408

約数和(自身を除く): 144834188

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 49531, 99062, 198124, 247655, 495310, 990620, 6488561, 12977122, 25954244, 32442805, 64885610, 129771220]

約数ペア:

[(1, 129771220), (2, 64885610), (4, 32442805), (5, 25954244), (10, 12977122), (20, 6488561), (131, 990620), (262, 495310), (524, 247655), (655, 198124), (1310, 99062), (2620, 49531)]