28822040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1289}}^1$

素因数の和:1356

約数の個数: 64

約数和(自身を含む): 71517600

約数和(自身を除く): 42695560

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 215, 260, 344, 430, 520, 559, 860, 1118, 1289, 1720, 2236, 2578, 2795, 4472, 5156, 5590, 6445, 10312, 11180, 12890, 16757, 22360, 25780, 33514, 51560, 55427, 67028, 83785, 110854, 134056, 167570, 221708, 277135, 335140, 443416, 554270, 670280, 720551, 1108540, 1441102, 2217080, 2882204, 3602755, 5764408, 7205510, 14411020, 28822040]

約数ペア:

[(1, 28822040), (2, 14411020), (4, 7205510), (5, 5764408), (8, 3602755), (10, 2882204), (13, 2217080), (20, 1441102), (26, 1108540), (40, 720551), (43, 670280), (52, 554270), (65, 443416), (86, 335140), (104, 277135), (130, 221708), (172, 167570), (215, 134056), (260, 110854), (344, 83785), (430, 67028), (520, 55427), (559, 51560), (860, 33514), (1118, 25780), (1289, 22360), (1720, 16757), (2236, 12890), (2578, 11180), (2795, 10312), (4472, 6445), (5156, 5590)]