128702980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{13721}}^1$

素因数の和:13804

約数の個数: 48

約数和(自身を含む): 313520256

約数和(自身を除く): 184817276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 335, 469, 670, 938, 1340, 1876, 2345, 4690, 9380, 13721, 27442, 54884, 68605, 96047, 137210, 192094, 274420, 384188, 480235, 919307, 960470, 1838614, 1920940, 3677228, 4596535, 6435149, 9193070, 12870298, 18386140, 25740596, 32175745, 64351490, 128702980]

約数ペア:

[(1, 128702980), (2, 64351490), (4, 32175745), (5, 25740596), (7, 18386140), (10, 12870298), (14, 9193070), (20, 6435149), (28, 4596535), (35, 3677228), (67, 1920940), (70, 1838614), (134, 960470), (140, 919307), (268, 480235), (335, 384188), (469, 274420), (670, 192094), (938, 137210), (1340, 96047), (1876, 68605), (2345, 54884), (4690, 27442), (9380, 13721)]