71221760

素因数分解:

$2^9\times 5^1\times {\mathrm{43}}^1\times {\mathrm{647}}^1$

素因数の和:713

約数の個数: 80

約数和(自身を含む): 175006656

約数和(自身を除く): 103784896

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, 647, 688, 860, 1280, 1294, 1376, 1720, 2560, 2588, 2752, 3235, 3440, 5176, 5504, 6470, 6880, 10352, 11008, 12940, 13760, 20704, 22016, 25880, 27520, 27821, 41408, 51760, 55040, 55642, 82816, 103520, 110080, 111284, 139105, 165632, 207040, 222568, 278210, 331264, 414080, 445136, 556420, 828160, 890272, 1112840, 1656320, 1780544, 2225680, 3561088, 4451360, 7122176, 8902720, 14244352, 17805440, 35610880, 71221760]

約数ペア:

[(1, 71221760), (2, 35610880), (4, 17805440), (5, 14244352), (8, 8902720), (10, 7122176), (16, 4451360), (20, 3561088), (32, 2225680), (40, 1780544), (43, 1656320), (64, 1112840), (80, 890272), (86, 828160), (128, 556420), (160, 445136), (172, 414080), (215, 331264), (256, 278210), (320, 222568), (344, 207040), (430, 165632), (512, 139105), (640, 111284), (647, 110080), (688, 103520), (860, 82816), (1280, 55642), (1294, 55040), (1376, 51760), (1720, 41408), (2560, 27821), (2588, 27520), (2752, 25880), (3235, 22016), (3440, 20704), (5176, 13760), (5504, 12940), (6470, 11008), (6880, 10352)]