64438400

素因数分解:

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

素因数の和:1586

約数の個数: 96

約数和(自身を含む): 171538500

約数和(自身を除く): 107100100

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 128, 130, 160, 200, 208, 260, 320, 325, 400, 416, 520, 640, 650, 800, 832, 1040, 1300, 1549, 1600, 1664, 2080, 2600, 3098, 3200, 4160, 5200, 6196, 7745, 8320, 10400, 12392, 15490, 20137, 20800, 24784, 30980, 38725, 40274, 41600, 49568, 61960, 77450, 80548, 99136, 100685, 123920, 154900, 161096, 198272, 201370, 247840, 309800, 322192, 402740, 495680, 503425, 619600, 644384, 805480, 991360, 1006850, 1239200, 1288768, 1610960, 2013700, 2478400, 2577536, 3221920, 4027400, 4956800, 6443840, 8054800, 12887680, 16109600, 32219200, 64438400]

約数ペア:

[(1, 64438400), (2, 32219200), (4, 16109600), (5, 12887680), (8, 8054800), (10, 6443840), (13, 4956800), (16, 4027400), (20, 3221920), (25, 2577536), (26, 2478400), (32, 2013700), (40, 1610960), (50, 1288768), (52, 1239200), (64, 1006850), (65, 991360), (80, 805480), (100, 644384), (104, 619600), (128, 503425), (130, 495680), (160, 402740), (200, 322192), (208, 309800), (260, 247840), (320, 201370), (325, 198272), (400, 161096), (416, 154900), (520, 123920), (640, 100685), (650, 99136), (800, 80548), (832, 77450), (1040, 61960), (1300, 49568), (1549, 41600), (1600, 40274), (1664, 38725), (2080, 30980), (2600, 24784), (3098, 20800), (3200, 20137), (4160, 15490), (5200, 12392), (6196, 10400), (7745, 8320)]