28750204

素因数分解:

$2^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 59270400

約数和(自身を除く): 30520196

約数列:

[1, 2, 4, 7, 14, 28, 83, 89, 139, 166, 178, 278, 332, 356, 556, 581, 623, 973, 1162, 1246, 1946, 2324, 2492, 3892, 7387, 11537, 12371, 14774, 23074, 24742, 29548, 46148, 49484, 51709, 80759, 86597, 103418, 161518, 173194, 206836, 323036, 346388, 1026793, 2053586, 4107172, 7187551, 14375102, 28750204]

約数ペア:

[(1, 28750204), (2, 14375102), (4, 7187551), (7, 4107172), (14, 2053586), (28, 1026793), (83, 346388), (89, 323036), (139, 206836), (166, 173194), (178, 161518), (278, 103418), (332, 86597), (356, 80759), (556, 51709), (581, 49484), (623, 46148), (973, 29548), (1162, 24742), (1246, 23074), (1946, 14774), (2324, 12371), (2492, 11537), (3892, 7387)]