128514883990

素因数分解:

$2^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{51201149}}^1$

素因数の和:51201407

約数の個数: 16

約数和(自身を含む): 232248416400

約数和(自身を除く): 103733532410

約数列:

[1, 2, 5, 10, 251, 502, 1255, 2510, 51201149, 102402298, 256005745, 512011490, 12851488399, 25702976798, 64257441995, 128514883990]

約数ペア:

[(1, 128514883990), (2, 64257441995), (5, 25702976798), (10, 12851488399), (251, 512011490), (502, 256005745), (1255, 102402298), (2510, 51201149)]