80638720

素因数分解:

$2^8\times 5^1\times {\mathrm{73}}^1\times {\mathrm{863}}^1$

素因数の和:957

約数の個数: 72

約数和(自身を含む): 196027776

約数和(自身を除く): 115389056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 73, 80, 128, 146, 160, 256, 292, 320, 365, 584, 640, 730, 863, 1168, 1280, 1460, 1726, 2336, 2920, 3452, 4315, 4672, 5840, 6904, 8630, 9344, 11680, 13808, 17260, 18688, 23360, 27616, 34520, 46720, 55232, 62999, 69040, 93440, 110464, 125998, 138080, 220928, 251996, 276160, 314995, 503992, 552320, 629990, 1007984, 1104640, 1259980, 2015968, 2519960, 4031936, 5039920, 8063872, 10079840, 16127744, 20159680, 40319360, 80638720]

約数ペア:

[(1, 80638720), (2, 40319360), (4, 20159680), (5, 16127744), (8, 10079840), (10, 8063872), (16, 5039920), (20, 4031936), (32, 2519960), (40, 2015968), (64, 1259980), (73, 1104640), (80, 1007984), (128, 629990), (146, 552320), (160, 503992), (256, 314995), (292, 276160), (320, 251996), (365, 220928), (584, 138080), (640, 125998), (730, 110464), (863, 93440), (1168, 69040), (1280, 62999), (1460, 55232), (1726, 46720), (2336, 34520), (2920, 27616), (3452, 23360), (4315, 18688), (4672, 17260), (5840, 13808), (6904, 11680), (8630, 9344)]