209640285

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{631}}^1$

素因数の和:775

約数の個数: 64

約数和(自身を含む): 393154560

約数和(自身を除く): 183514275

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 107, 115, 135, 207, 321, 345, 535, 621, 631, 963, 1035, 1605, 1893, 2461, 2889, 3105, 3155, 4815, 5679, 7383, 9465, 12305, 14445, 14513, 17037, 22149, 28395, 36915, 43539, 66447, 67517, 72565, 85185, 110745, 130617, 202551, 217695, 332235, 337585, 391851, 607653, 653085, 1012755, 1552891, 1822959, 1959255, 3038265, 4658673, 7764455, 9114795, 13976019, 23293365, 41928057, 69880095, 209640285]

約数ペア:

[(1, 209640285), (3, 69880095), (5, 41928057), (9, 23293365), (15, 13976019), (23, 9114795), (27, 7764455), (45, 4658673), (69, 3038265), (107, 1959255), (115, 1822959), (135, 1552891), (207, 1012755), (321, 653085), (345, 607653), (535, 391851), (621, 337585), (631, 332235), (963, 217695), (1035, 202551), (1605, 130617), (1893, 110745), (2461, 85185), (2889, 72565), (3105, 67517), (3155, 66447), (4815, 43539), (5679, 36915), (7383, 28395), (9465, 22149), (12305, 17037), (14445, 14513)]