20403910

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{6317}}^1$

素因数の和:6360

約数の個数: 32

約数和(自身を含む): 40940640

約数和(自身を除く): 20536730

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 85, 95, 170, 190, 323, 646, 1615, 3230, 6317, 12634, 31585, 63170, 107389, 120023, 214778, 240046, 536945, 600115, 1073890, 1200230, 2040391, 4080782, 10201955, 20403910]

約数ペア:

[(1, 20403910), (2, 10201955), (5, 4080782), (10, 2040391), (17, 1200230), (19, 1073890), (34, 600115), (38, 536945), (85, 240046), (95, 214778), (170, 120023), (190, 107389), (323, 63170), (646, 31585), (1615, 12634), (3230, 6317)]