131058640

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{16889}}^1$

素因数の和:16999

約数の個数: 40

約数和(自身を含む): 307870920

約数和(自身を除く): 176812280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 7760, 16889, 33778, 67556, 84445, 135112, 168890, 270224, 337780, 675560, 1351120, 1638233, 3276466, 6552932, 8191165, 13105864, 16382330, 26211728, 32764660, 65529320, 131058640]

約数ペア:

[(1, 131058640), (2, 65529320), (4, 32764660), (5, 26211728), (8, 16382330), (10, 13105864), (16, 8191165), (20, 6552932), (40, 3276466), (80, 1638233), (97, 1351120), (194, 675560), (388, 337780), (485, 270224), (776, 168890), (970, 135112), (1552, 84445), (1940, 67556), (3880, 33778), (7760, 16889)]