205321428

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{438721}}^1$

素因数の和:438744

約数の個数: 36

約数和(自身を含む): 558931828

約数和(自身を除く): 353610400

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 438721, 877442, 1316163, 1754884, 2632326, 3948489, 5264652, 5703373, 7896978, 11406746, 15793956, 17110119, 22813492, 34220238, 51330357, 68440476, 102660714, 205321428]

約数ペア:

[(1, 205321428), (2, 102660714), (3, 68440476), (4, 51330357), (6, 34220238), (9, 22813492), (12, 17110119), (13, 15793956), (18, 11406746), (26, 7896978), (36, 5703373), (39, 5264652), (52, 3948489), (78, 2632326), (117, 1754884), (156, 1316163), (234, 877442), (468, 438721)]