64620880

素因数分解:

$2^4\times 5^1\times {\mathrm{653}}^1\times {\mathrm{1237}}^1$

素因数の和:1903

約数の個数: 40

約数和(自身を含む): 150595272

約数和(自身を除く): 85974392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 653, 1237, 1306, 2474, 2612, 3265, 4948, 5224, 6185, 6530, 9896, 10448, 12370, 13060, 19792, 24740, 26120, 49480, 52240, 98960, 807761, 1615522, 3231044, 4038805, 6462088, 8077610, 12924176, 16155220, 32310440, 64620880]

約数ペア:

[(1, 64620880), (2, 32310440), (4, 16155220), (5, 12924176), (8, 8077610), (10, 6462088), (16, 4038805), (20, 3231044), (40, 1615522), (80, 807761), (653, 98960), (1237, 52240), (1306, 49480), (2474, 26120), (2612, 24740), (3265, 19792), (4948, 13060), (5224, 12370), (6185, 10448), (6530, 9896)]