81861572

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{1459}}^1$

素因数の和:1572

約数の個数: 36

約数和(自身を含む): 157101840

約数和(自身を除く): 75240268

約数列:

[1, 2, 4, 13, 26, 52, 83, 166, 169, 332, 338, 676, 1079, 1459, 2158, 2918, 4316, 5836, 14027, 18967, 28054, 37934, 56108, 75868, 121097, 242194, 246571, 484388, 493142, 986284, 1574261, 3148522, 6297044, 20465393, 40930786, 81861572]

約数ペア:

[(1, 81861572), (2, 40930786), (4, 20465393), (13, 6297044), (26, 3148522), (52, 1574261), (83, 986284), (166, 493142), (169, 484388), (332, 246571), (338, 242194), (676, 121097), (1079, 75868), (1459, 56108), (2158, 37934), (2918, 28054), (4316, 18967), (5836, 14027)]