2051280040

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{631}}^1\times {\mathrm{1213}}^1$

素因数の和:1922

約数の個数: 64

約数和(自身を含む): 4695557760

約数和(自身を除く): 2644277720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 631, 670, 1213, 1262, 1340, 2426, 2524, 2680, 3155, 4852, 5048, 6065, 6310, 9704, 12130, 12620, 24260, 25240, 42277, 48520, 81271, 84554, 162542, 169108, 211385, 325084, 338216, 406355, 422770, 650168, 765403, 812710, 845540, 1530806, 1625420, 1691080, 3061612, 3250840, 3827015, 6123224, 7654030, 15308060, 30616120, 51282001, 102564002, 205128004, 256410005, 410256008, 512820010, 1025640020, 2051280040]

約数ペア:

[(1, 2051280040), (2, 1025640020), (4, 512820010), (5, 410256008), (8, 256410005), (10, 205128004), (20, 102564002), (40, 51282001), (67, 30616120), (134, 15308060), (268, 7654030), (335, 6123224), (536, 3827015), (631, 3250840), (670, 3061612), (1213, 1691080), (1262, 1625420), (1340, 1530806), (2426, 845540), (2524, 812710), (2680, 765403), (3155, 650168), (4852, 422770), (5048, 406355), (6065, 338216), (6310, 325084), (9704, 211385), (12130, 169108), (12620, 162542), (24260, 84554), (25240, 81271), (42277, 48520)]