89817520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1289}}^1$

素因数の和:1382

約数の個数: 80

約数和(自身を含む): 228422880

約数和(自身を除く): 138605360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 67, 80, 104, 130, 134, 208, 260, 268, 335, 520, 536, 670, 871, 1040, 1072, 1289, 1340, 1742, 2578, 2680, 3484, 4355, 5156, 5360, 6445, 6968, 8710, 10312, 12890, 13936, 16757, 17420, 20624, 25780, 33514, 34840, 51560, 67028, 69680, 83785, 86363, 103120, 134056, 167570, 172726, 268112, 335140, 345452, 431815, 670280, 690904, 863630, 1122719, 1340560, 1381808, 1727260, 2245438, 3454520, 4490876, 5613595, 6909040, 8981752, 11227190, 17963504, 22454380, 44908760, 89817520]

約数ペア:

[(1, 89817520), (2, 44908760), (4, 22454380), (5, 17963504), (8, 11227190), (10, 8981752), (13, 6909040), (16, 5613595), (20, 4490876), (26, 3454520), (40, 2245438), (52, 1727260), (65, 1381808), (67, 1340560), (80, 1122719), (104, 863630), (130, 690904), (134, 670280), (208, 431815), (260, 345452), (268, 335140), (335, 268112), (520, 172726), (536, 167570), (670, 134056), (871, 103120), (1040, 86363), (1072, 83785), (1289, 69680), (1340, 67028), (1742, 51560), (2578, 34840), (2680, 33514), (3484, 25780), (4355, 20624), (5156, 17420), (5360, 16757), (6445, 13936), (6968, 12890), (8710, 10312)]