291249680

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{27791}}^1$

素因数の和:27935

約数の個数: 40

約数和(自身を含む): 682349184

約数和(自身を除く): 391099504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 2096, 2620, 5240, 10480, 27791, 55582, 111164, 138955, 222328, 277910, 444656, 555820, 1111640, 2223280, 3640621, 7281242, 14562484, 18203105, 29124968, 36406210, 58249936, 72812420, 145624840, 291249680]

約数ペア:

[(1, 291249680), (2, 145624840), (4, 72812420), (5, 58249936), (8, 36406210), (10, 29124968), (16, 18203105), (20, 14562484), (40, 7281242), (80, 3640621), (131, 2223280), (262, 1111640), (524, 555820), (655, 444656), (1048, 277910), (1310, 222328), (2096, 138955), (2620, 111164), (5240, 55582), (10480, 27791)]