12887680

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1549}}^1$

素因数の和:1581

約数の個数: 64

約数和(自身を含む): 33201000

約数和(自身を除く): 20313320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1549, 1664, 2080, 3098, 4160, 6196, 7745, 8320, 12392, 15490, 20137, 24784, 30980, 40274, 49568, 61960, 80548, 99136, 100685, 123920, 161096, 198272, 201370, 247840, 322192, 402740, 495680, 644384, 805480, 991360, 1288768, 1610960, 2577536, 3221920, 6443840, 12887680]

約数ペア:

[(1, 12887680), (2, 6443840), (4, 3221920), (5, 2577536), (8, 1610960), (10, 1288768), (13, 991360), (16, 805480), (20, 644384), (26, 495680), (32, 402740), (40, 322192), (52, 247840), (64, 201370), (65, 198272), (80, 161096), (104, 123920), (128, 100685), (130, 99136), (160, 80548), (208, 61960), (260, 49568), (320, 40274), (416, 30980), (520, 24784), (640, 20137), (832, 15490), (1040, 12392), (1549, 8320), (1664, 7745), (2080, 6196), (3098, 4160)]