171779840

素因数分解:

$2^8\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3121}}^1$

素因数の和:3185

約数の個数: 72

約数和(自身を含む): 421170288

約数和(自身を除く): 249390448

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, 640, 688, 860, 1280, 1376, 1720, 2752, 3121, 3440, 5504, 6242, 6880, 11008, 12484, 13760, 15605, 24968, 27520, 31210, 49936, 55040, 62420, 99872, 124840, 134203, 199744, 249680, 268406, 399488, 499360, 536812, 671015, 798976, 998720, 1073624, 1342030, 1997440, 2147248, 2684060, 3994880, 4294496, 5368120, 8588992, 10736240, 17177984, 21472480, 34355968, 42944960, 85889920, 171779840]

約数ペア:

[(1, 171779840), (2, 85889920), (4, 42944960), (5, 34355968), (8, 21472480), (10, 17177984), (16, 10736240), (20, 8588992), (32, 5368120), (40, 4294496), (43, 3994880), (64, 2684060), (80, 2147248), (86, 1997440), (128, 1342030), (160, 1073624), (172, 998720), (215, 798976), (256, 671015), (320, 536812), (344, 499360), (430, 399488), (640, 268406), (688, 249680), (860, 199744), (1280, 134203), (1376, 124840), (1720, 99872), (2752, 62420), (3121, 55040), (3440, 49936), (5504, 31210), (6242, 27520), (6880, 24968), (11008, 15605), (12484, 13760)]