129880090

素因数分解:

$2^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{257}}^1\times {\mathrm{521}}^1$

素因数の和:882

約数の個数: 32

約数和(自身を含む): 237568464

約数和(自身を除く): 107688374

約数列:

[1, 2, 5, 10, 97, 194, 257, 485, 514, 521, 970, 1042, 1285, 2570, 2605, 5210, 24929, 49858, 50537, 101074, 124645, 133897, 249290, 252685, 267794, 505370, 669485, 1338970, 12988009, 25976018, 64940045, 129880090]

約数ペア:

[(1, 129880090), (2, 64940045), (5, 25976018), (10, 12988009), (97, 1338970), (194, 669485), (257, 505370), (485, 267794), (514, 252685), (521, 249290), (970, 133897), (1042, 124645), (1285, 101074), (2570, 50537), (2605, 49858), (5210, 24929)]