9999960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{167}}^1\times {\mathrm{499}}^1$

素因数の和:680

約数の個数: 64

約数和(自身を含む): 30240000

約数和(自身を除く): 20240040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 167, 334, 499, 501, 668, 835, 998, 1002, 1336, 1497, 1670, 1996, 2004, 2495, 2505, 2994, 3340, 3992, 4008, 4990, 5010, 5988, 6680, 7485, 9980, 10020, 11976, 14970, 19960, 20040, 29940, 59880, 83333, 166666, 249999, 333332, 416665, 499998, 666664, 833330, 999996, 1249995, 1666660, 1999992, 2499990, 3333320, 4999980, 9999960]

約数ペア:

[(1, 9999960), (2, 4999980), (3, 3333320), (4, 2499990), (5, 1999992), (6, 1666660), (8, 1249995), (10, 999996), (12, 833330), (15, 666664), (20, 499998), (24, 416665), (30, 333332), (40, 249999), (60, 166666), (120, 83333), (167, 59880), (334, 29940), (499, 20040), (501, 19960), (668, 14970), (835, 11976), (998, 10020), (1002, 9980), (1336, 7485), (1497, 6680), (1670, 5988), (1996, 5010), (2004, 4990), (2495, 4008), (2505, 3992), (2994, 3340)]