4356820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1289}}^1$

素因数の和:1324

約数の個数: 36

約数和(自身を含む): 9914940

約数和(自身を除く): 5558120

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1289, 1690, 2578, 3380, 5156, 6445, 12890, 16757, 25780, 33514, 67028, 83785, 167570, 217841, 335140, 435682, 871364, 1089205, 2178410, 4356820]

約数ペア:

[(1, 4356820), (2, 2178410), (4, 1089205), (5, 871364), (10, 435682), (13, 335140), (20, 217841), (26, 167570), (52, 83785), (65, 67028), (130, 33514), (169, 25780), (260, 16757), (338, 12890), (676, 6445), (845, 5156), (1289, 3380), (1690, 2578)]