83991680

素因数分解:

$2^7\times 5^1\times {\mathrm{263}}^1\times {\mathrm{499}}^1$

素因数の和:781

約数の個数: 64

約数和(自身を含む): 201960000

約数和(自身を除く): 117968320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 263, 320, 499, 526, 640, 998, 1052, 1315, 1996, 2104, 2495, 2630, 3992, 4208, 4990, 5260, 7984, 8416, 9980, 10520, 15968, 16832, 19960, 21040, 31936, 33664, 39920, 42080, 63872, 79840, 84160, 131237, 159680, 168320, 262474, 319360, 524948, 656185, 1049896, 1312370, 2099792, 2624740, 4199584, 5249480, 8399168, 10498960, 16798336, 20997920, 41995840, 83991680]

約数ペア:

[(1, 83991680), (2, 41995840), (4, 20997920), (5, 16798336), (8, 10498960), (10, 8399168), (16, 5249480), (20, 4199584), (32, 2624740), (40, 2099792), (64, 1312370), (80, 1049896), (128, 656185), (160, 524948), (263, 319360), (320, 262474), (499, 168320), (526, 159680), (640, 131237), (998, 84160), (1052, 79840), (1315, 63872), (1996, 42080), (2104, 39920), (2495, 33664), (2630, 31936), (3992, 21040), (4208, 19960), (4990, 16832), (5260, 15968), (7984, 10520), (8416, 9980)]