20142128

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1123}}^1$

素因数の和:1209

約数の個数: 40

約数和(自身を含む): 41812800

約数和(自身を除く): 21670672

約数列:

[1, 2, 4, 8, 16, 19, 38, 59, 76, 118, 152, 236, 304, 472, 944, 1121, 1123, 2242, 2246, 4484, 4492, 8968, 8984, 17936, 17968, 21337, 42674, 66257, 85348, 132514, 170696, 265028, 341392, 530056, 1060112, 1258883, 2517766, 5035532, 10071064, 20142128]

約数ペア:

[(1, 20142128), (2, 10071064), (4, 5035532), (8, 2517766), (16, 1258883), (19, 1060112), (38, 530056), (59, 341392), (76, 265028), (118, 170696), (152, 132514), (236, 85348), (304, 66257), (472, 42674), (944, 21337), (1121, 17968), (1123, 17936), (2242, 8984), (2246, 8968), (4484, 4492)]