999980480

素因数分解:

$2^6\times 5^1\times {\mathrm{43}}^1\times {\mathrm{72673}}^1$

素因数の和:72733

約数の個数: 56

約数和(自身を含む): 2436613872

約数和(自身を除く): 1436633392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 160, 172, 215, 320, 344, 430, 688, 860, 1376, 1720, 2752, 3440, 6880, 13760, 72673, 145346, 290692, 363365, 581384, 726730, 1162768, 1453460, 2325536, 2906920, 3124939, 4651072, 5813840, 6249878, 11627680, 12499756, 15624695, 23255360, 24999512, 31249390, 49999024, 62498780, 99998048, 124997560, 199996096, 249995120, 499990240, 999980480]

約数ペア:

[(1, 999980480), (2, 499990240), (4, 249995120), (5, 199996096), (8, 124997560), (10, 99998048), (16, 62498780), (20, 49999024), (32, 31249390), (40, 24999512), (43, 23255360), (64, 15624695), (80, 12499756), (86, 11627680), (160, 6249878), (172, 5813840), (215, 4651072), (320, 3124939), (344, 2906920), (430, 2325536), (688, 1453460), (860, 1162768), (1376, 726730), (1720, 581384), (2752, 363365), (3440, 290692), (6880, 145346), (13760, 72673)]