280805427

素因数分解:

$3^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{11171}}^1$

素因数の和:11213

約数の個数: 48

約数和(自身を含む): 509443200

約数和(自身を除く): 228637773

約数列:

[1, 3, 7, 9, 19, 21, 27, 49, 57, 63, 133, 147, 171, 189, 399, 441, 513, 931, 1197, 1323, 2793, 3591, 8379, 11171, 25137, 33513, 78197, 100539, 212249, 234591, 301617, 547379, 636747, 703773, 1485743, 1642137, 1910241, 2111319, 4457229, 4926411, 5730723, 10400201, 13371687, 14779233, 31200603, 40115061, 93601809, 280805427]

約数ペア:

[(1, 280805427), (3, 93601809), (7, 40115061), (9, 31200603), (19, 14779233), (21, 13371687), (27, 10400201), (49, 5730723), (57, 4926411), (63, 4457229), (133, 2111319), (147, 1910241), (171, 1642137), (189, 1485743), (399, 703773), (441, 636747), (513, 547379), (931, 301617), (1197, 234591), (1323, 212249), (2793, 100539), (3591, 78197), (8379, 33513), (11171, 25137)]