20139795

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{199}}^1$

素因数の和:396

約数の個数: 48

約数和(自身を含む): 38001600

約数和(自身を除く): 17861805

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 173, 195, 199, 519, 585, 597, 865, 995, 1557, 1791, 2249, 2587, 2595, 2985, 6747, 7761, 7785, 8955, 11245, 12935, 20241, 23283, 33735, 34427, 38805, 101205, 103281, 116415, 172135, 309843, 447551, 516405, 1342653, 1549215, 2237755, 4027959, 6713265, 20139795]

約数ペア:

[(1, 20139795), (3, 6713265), (5, 4027959), (9, 2237755), (13, 1549215), (15, 1342653), (39, 516405), (45, 447551), (65, 309843), (117, 172135), (173, 116415), (195, 103281), (199, 101205), (519, 38805), (585, 34427), (597, 33735), (865, 23283), (995, 20241), (1557, 12935), (1791, 11245), (2249, 8955), (2587, 7785), (2595, 7761), (2985, 6747)]