80719920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{112111}}^1$

素因数の和:112130

約数の個数: 60

約数和(自身を含む): 271086816

約数和(自身を除く): 190366896

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 112111, 224222, 336333, 448444, 560555, 672666, 896888, 1008999, 1121110, 1345332, 1681665, 1793776, 2017998, 2242220, 2690664, 3363330, 4035996, 4484440, 5044995, 5381328, 6726660, 8071992, 8968880, 10089990, 13453320, 16143984, 20179980, 26906640, 40359960, 80719920]

約数ペア:

[(1, 80719920), (2, 40359960), (3, 26906640), (4, 20179980), (5, 16143984), (6, 13453320), (8, 10089990), (9, 8968880), (10, 8071992), (12, 6726660), (15, 5381328), (16, 5044995), (18, 4484440), (20, 4035996), (24, 3363330), (30, 2690664), (36, 2242220), (40, 2017998), (45, 1793776), (48, 1681665), (60, 1345332), (72, 1121110), (80, 1008999), (90, 896888), (120, 672666), (144, 560555), (180, 448444), (240, 336333), (360, 224222), (720, 112111)]