2681120

素因数分解:

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

素因数の和:1317

約数の個数: 48

約数和(自身を含む): 6826680

約数和(自身を除く): 4145560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 1289, 2080, 2578, 5156, 6445, 10312, 12890, 16757, 20624, 25780, 33514, 41248, 51560, 67028, 83785, 103120, 134056, 167570, 206240, 268112, 335140, 536224, 670280, 1340560, 2681120]

約数ペア:

[(1, 2681120), (2, 1340560), (4, 670280), (5, 536224), (8, 335140), (10, 268112), (13, 206240), (16, 167570), (20, 134056), (26, 103120), (32, 83785), (40, 67028), (52, 51560), (65, 41248), (80, 33514), (104, 25780), (130, 20624), (160, 16757), (208, 12890), (260, 10312), (416, 6445), (520, 5156), (1040, 2578), (1289, 2080)]