280902573

素因数分解:

$3^4\times 7^1\times {\mathrm{491}}^1\times {\mathrm{1009}}^1$

素因数の和:1519

約数の個数: 40

約数和(自身を含む): 481018560

約数和(自身を除く): 200115987

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 491, 567, 1009, 1473, 3027, 3437, 4419, 7063, 9081, 10311, 13257, 21189, 27243, 30933, 39771, 63567, 81729, 92799, 190701, 278397, 495419, 572103, 1486257, 3467933, 4458771, 10403799, 13376313, 31211397, 40128939, 93634191, 280902573]

約数ペア:

[(1, 280902573), (3, 93634191), (7, 40128939), (9, 31211397), (21, 13376313), (27, 10403799), (63, 4458771), (81, 3467933), (189, 1486257), (491, 572103), (567, 495419), (1009, 278397), (1473, 190701), (3027, 92799), (3437, 81729), (4419, 63567), (7063, 39771), (9081, 30933), (10311, 27243), (13257, 21189)]