129632240

素因数分解:

$2^4\times 5^1\times {\mathrm{1620403}}^1$

素因数の和:1620416

約数の個数: 20

約数和(自身を含む): 301395144

約数和(自身を除く): 171762904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1620403, 3240806, 6481612, 8102015, 12963224, 16204030, 25926448, 32408060, 64816120, 129632240]

約数ペア:

[(1, 129632240), (2, 64816120), (4, 32408060), (5, 25926448), (8, 16204030), (10, 12963224), (16, 8102015), (20, 6481612), (40, 3240806), (80, 1620403)]