20797760

素因数分解:

$2^6\times 5^1\times {\mathrm{103}}^1\times {\mathrm{631}}^1$

素因数の和:751

約数の個数: 56

約数和(自身を含む): 50084736

約数和(自身を除く): 29286976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 103, 160, 206, 320, 412, 515, 631, 824, 1030, 1262, 1648, 2060, 2524, 3155, 3296, 4120, 5048, 6310, 6592, 8240, 10096, 12620, 16480, 20192, 25240, 32960, 40384, 50480, 64993, 100960, 129986, 201920, 259972, 324965, 519944, 649930, 1039888, 1299860, 2079776, 2599720, 4159552, 5199440, 10398880, 20797760]

約数ペア:

[(1, 20797760), (2, 10398880), (4, 5199440), (5, 4159552), (8, 2599720), (10, 2079776), (16, 1299860), (20, 1039888), (32, 649930), (40, 519944), (64, 324965), (80, 259972), (103, 201920), (160, 129986), (206, 100960), (320, 64993), (412, 50480), (515, 40384), (631, 32960), (824, 25240), (1030, 20192), (1262, 16480), (1648, 12620), (2060, 10096), (2524, 8240), (3155, 6592), (3296, 6310), (4120, 5048)]