1025640020

素因数分解:

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

素因数の和:1920

約数の個数: 48

約数和(自身を含む): 2191260288

約数和(自身を除く): 1165620268

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 631, 670, 1213, 1262, 1340, 2426, 2524, 3155, 4852, 6065, 6310, 12130, 12620, 24260, 42277, 81271, 84554, 162542, 169108, 211385, 325084, 406355, 422770, 765403, 812710, 845540, 1530806, 1625420, 3061612, 3827015, 7654030, 15308060, 51282001, 102564002, 205128004, 256410005, 512820010, 1025640020]

約数ペア:

[(1, 1025640020), (2, 512820010), (4, 256410005), (5, 205128004), (10, 102564002), (20, 51282001), (67, 15308060), (134, 7654030), (268, 3827015), (335, 3061612), (631, 1625420), (670, 1530806), (1213, 845540), (1262, 812710), (1340, 765403), (2426, 422770), (2524, 406355), (3155, 325084), (4852, 211385), (6065, 169108), (6310, 162542), (12130, 84554), (12620, 81271), (24260, 42277)]