64649650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1259}}^1$

素因数の和:1363

約数の個数: 48

約数和(自身を含む): 131241600

約数和(自身を除く): 66591950

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 79, 130, 158, 325, 395, 650, 790, 1027, 1259, 1975, 2054, 2518, 3950, 5135, 6295, 10270, 12590, 16367, 25675, 31475, 32734, 51350, 62950, 81835, 99461, 163670, 198922, 409175, 497305, 818350, 994610, 1292993, 2486525, 2585986, 4973050, 6464965, 12929930, 32324825, 64649650]

約数ペア:

[(1, 64649650), (2, 32324825), (5, 12929930), (10, 6464965), (13, 4973050), (25, 2585986), (26, 2486525), (50, 1292993), (65, 994610), (79, 818350), (130, 497305), (158, 409175), (325, 198922), (395, 163670), (650, 99461), (790, 81835), (1027, 62950), (1259, 51350), (1975, 32734), (2054, 31475), (2518, 25675), (3950, 16367), (5135, 12590), (6295, 10270)]