129500480

素因数分解:

$2^6\times 5^1\times {\mathrm{499}}^1\times {\mathrm{811}}^1$

素因数の和:1327

約数の個数: 56

約数和(自身を含む): 309372000

約数和(自身を除く): 179871520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 499, 811, 998, 1622, 1996, 2495, 3244, 3992, 4055, 4990, 6488, 7984, 8110, 9980, 12976, 15968, 16220, 19960, 25952, 31936, 32440, 39920, 51904, 64880, 79840, 129760, 159680, 259520, 404689, 809378, 1618756, 2023445, 3237512, 4046890, 6475024, 8093780, 12950048, 16187560, 25900096, 32375120, 64750240, 129500480]

約数ペア:

[(1, 129500480), (2, 64750240), (4, 32375120), (5, 25900096), (8, 16187560), (10, 12950048), (16, 8093780), (20, 6475024), (32, 4046890), (40, 3237512), (64, 2023445), (80, 1618756), (160, 809378), (320, 404689), (499, 259520), (811, 159680), (998, 129760), (1622, 79840), (1996, 64880), (2495, 51904), (3244, 39920), (3992, 32440), (4055, 31936), (4990, 25952), (6488, 19960), (7984, 16220), (8110, 15968), (9980, 12976)]