20248528

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1549}}^1$

素因数の和:1619

約数の個数: 40

約数和(自身を含む): 42284000

約数和(自身を除く): 22035472

約数列:

[1, 2, 4, 8, 16, 19, 38, 43, 76, 86, 152, 172, 304, 344, 688, 817, 1549, 1634, 3098, 3268, 6196, 6536, 12392, 13072, 24784, 29431, 58862, 66607, 117724, 133214, 235448, 266428, 470896, 532856, 1065712, 1265533, 2531066, 5062132, 10124264, 20248528]

約数ペア:

[(1, 20248528), (2, 10124264), (4, 5062132), (8, 2531066), (16, 1265533), (19, 1065712), (38, 532856), (43, 470896), (76, 266428), (86, 235448), (152, 133214), (172, 117724), (304, 66607), (344, 58862), (688, 29431), (817, 24784), (1549, 13072), (1634, 12392), (3098, 6536), (3268, 6196)]