51503920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{49523}}^1$

素因数の和:49549

約数の個数: 40

約数和(自身を含む): 128960496

約数和(自身を除く): 77456576

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 49523, 99046, 198092, 247615, 396184, 495230, 643799, 792368, 990460, 1287598, 1980920, 2575196, 3218995, 3961840, 5150392, 6437990, 10300784, 12875980, 25751960, 51503920]

約数ペア:

[(1, 51503920), (2, 25751960), (4, 12875980), (5, 10300784), (8, 6437990), (10, 5150392), (13, 3961840), (16, 3218995), (20, 2575196), (26, 1980920), (40, 1287598), (52, 990460), (65, 792368), (80, 643799), (104, 495230), (130, 396184), (208, 247615), (260, 198092), (520, 99046), (1040, 49523)]