217187840

素因数分解:

$2^9\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1973}}^1$

素因数の和:2039

約数の個数: 80

約数和(自身を含む): 533122128

約数和(自身を除く): 315934288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 256, 320, 344, 430, 512, 640, 688, 860, 1280, 1376, 1720, 1973, 2560, 2752, 3440, 3946, 5504, 6880, 7892, 9865, 11008, 13760, 15784, 19730, 22016, 27520, 31568, 39460, 55040, 63136, 78920, 84839, 110080, 126272, 157840, 169678, 252544, 315680, 339356, 424195, 505088, 631360, 678712, 848390, 1010176, 1262720, 1357424, 1696780, 2525440, 2714848, 3393560, 5050880, 5429696, 6787120, 10859392, 13574240, 21718784, 27148480, 43437568, 54296960, 108593920, 217187840]

約数ペア:

[(1, 217187840), (2, 108593920), (4, 54296960), (5, 43437568), (8, 27148480), (10, 21718784), (16, 13574240), (20, 10859392), (32, 6787120), (40, 5429696), (43, 5050880), (64, 3393560), (80, 2714848), (86, 2525440), (128, 1696780), (160, 1357424), (172, 1262720), (215, 1010176), (256, 848390), (320, 678712), (344, 631360), (430, 505088), (512, 424195), (640, 339356), (688, 315680), (860, 252544), (1280, 169678), (1376, 157840), (1720, 126272), (1973, 110080), (2560, 84839), (2752, 78920), (3440, 63136), (3946, 55040), (5504, 39460), (6880, 31568), (7892, 27520), (9865, 22016), (11008, 19730), (13760, 15784)]