520019643

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{419}}^1$

素因数の和:720

約数の個数: 48

約数和(自身を含む): 825834240

約数和(自身を除く): 305814597

約数列:

[1, 3, 11, 13, 33, 39, 121, 143, 263, 363, 419, 429, 789, 1257, 1573, 2893, 3419, 4609, 4719, 5447, 8679, 10257, 13827, 16341, 31823, 37609, 50699, 59917, 95469, 110197, 112827, 152097, 179751, 330591, 413699, 659087, 1212167, 1241097, 1432561, 1977261, 3636501, 4297683, 13333837, 15758171, 40001511, 47274513, 173339881, 520019643]

約数ペア:

[(1, 520019643), (3, 173339881), (11, 47274513), (13, 40001511), (33, 15758171), (39, 13333837), (121, 4297683), (143, 3636501), (263, 1977261), (363, 1432561), (419, 1241097), (429, 1212167), (789, 659087), (1257, 413699), (1573, 330591), (2893, 179751), (3419, 152097), (4609, 112827), (4719, 110197), (5447, 95469), (8679, 59917), (10257, 50699), (13827, 37609), (16341, 31823)]